Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh hai » thanh hoa, thanh san
tac giao » tac gia, tac giai, tac giam
hieu van » hieu va, thien van, lieu va
sach kem » hanh kem
van cam » van nam, van lam, van cau
cam tac » cac tac, cam tay, can tac
nang co » nang cao, nang doc, nang noi
co hoi » co hoc, co loi
sac ky » cac ky, sai ky
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: vu ((sach kem) or (sac ky)) nang co hoi. hieu van cam tac giao ((thanh hai) or (thanh phan)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach kem) OR (sac ky)) nang co hoi. hieu van cam tac giao ((thanh hai) OR (thanh phan)) cua cu.
• Adding a wildcard symbol may retrieve word variants: vu ((sach kem) or (sac ky)) nang co hoi. hieu van cam tac giao ((thanh hai) or (thanh phan)) cua cu*.