Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va triet » va thiet, va trien, cua triet
hieu cao » chieu cao, hieu cac, hieu ca
dan day » da day, dan dat, dan da
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
loc va » hoc va, luc va
soc va » hoc va, doc va, goc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang xa hoi. hieu cao chat ((soc va) or (loc va)) dan day ((va triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu cao chat ((soc va) OR (loc va)) dan day ((va triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu cao chat ((soc va) or (loc va)) dan day ((va triet) or (ve triet))*.