Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky nang xa hoi. hieu ve cam ((xuc van) or (luc van)) hanh vi ((cua tu) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky nang xa hoi. hieu ve cam ((xuc van) OR (luc van)) hanh vi ((cua tu) OR (cua cu)).
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. hieu ve cam ((xuc van) or (luc van)) hanh vi ((cua tu) or (cua cu))*.