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We investigate the interplay between spatial anisotropy and further exchangeinteractions in the spin-$\frac{1}{2}$ Heisenberg antiferromagnetic model on atriangular lattice. We use the Schwinger boson theory by including Gaussianfluctuations above the mean-field approach. The phase diagram exhibits a strongreduction of the long range collinear and incommensurate spirals regions withrespect to the mean-field ones. This reduction is accompanied by the emergenceof its short range order counterparts, leaving an ample room for $0$-flux andnematic spin liquid regions. Remarkably, within the neighborhood of thespatially isotropic line, there is a range where the spirals are so fragilethat only the commensurate $120^{\circ}$ N\'eel ones survive. The goodagreement with recent variational Monte Carlo predictions gives support to therich phase diagram induced by spatial anisotropy.

Interplay between spatial anisotropy and further exchange interactions in the triangular Heisenberg model