Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
han tai » hang tai, nhan tai, van tai
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
hanh va » hang va, hanh vi
sach ky » sac ky, sach y, sach ty
cua te » cua tu
loc va » hoc va, luc va
xuc va » duc va, tuc va, luc 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 ky nang xa hoi. hieu van cam ((xuc va) or (loc va)) ((han tai) or (hanh va)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu van cam ((xuc va) OR (loc va)) ((han tai) OR (hanh va)) cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van cam ((xuc va) or (loc va)) ((han tai) or (hanh va)) cua te*.