Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh hai » thanh hoa, thanh san
hieu van » hieu va, thien van, lieu va
cam tuc » cam xuc, cam tu, nam thuc
tuc gia » tac gia, duc gia, toc gia
van cam » van nam, van lam, van cau
sach ky » sach y, sach ty, sach kem
nang o » nang co, nang ho, nang ro
sac ky » cac ky, sai ky
cua cu » cua chu, cua cau, cua su
o hoi » co hoi, o hoc, o hai

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 ky) or (sac ky)) nang o hoi. hieu van cam tuc gia ((thanh hai) OR (thanh phan)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sac ky)) nang o hoi. hieu van cam tuc gia ((thanh hai) OR (thanh phan)) cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) or (sac ky)) nang o hoi. hieu van cam tuc gia ((thanh hai) OR (thanh phan)) cua cu".
• Adding a wildcard symbol may retrieve word variants: vu ((sach ky) or (sac ky)) nang o hoi. hieu van cam tuc gia ((thanh hai) OR (thanh phan)) cua cu*.