Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
van cau » van dau, van hau, van chat
cau luc » cau truc, cau phuc
cua tre » cua te, cuu tre, cua triet
danh xa » danh ca, dinh xa, canh xa
luc va » duc va, tuc va, loc va
sac ky » cac ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sac ky) or (sai ky)) danh xa hoi. hieu van cau luc va thanh ve ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sac ky) OR (sai ky)) danh xa hoi. hieu van cau luc va thanh ve ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: vu ((sac ky) or (sai ky)) danh xa hoi. hieu van cau luc va thanh ve ((cua tre) or (cua tu))*.