Perhaps you should try some spelling variations:
thanh lap » thanh san, thanh hai, thanh van
phan lap » phan dau
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van cau
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang
tuc va » thuc va, truc va, tuc xa
co loi » co hoi
xac va » tac va, ac va, bac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang co loi. hieu van cam ((xac va) or (tuc va)) ((thanh lap) or (phan lap)) qua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang co loi. hieu van cam ((xac va) OR (tuc va)) ((thanh lap) OR (phan lap)) qua su.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang co loi. hieu van cam ((xac va) or (tuc va)) ((thanh lap) or (phan lap)) qua su*.