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 cam » van nam, van lam, van cau
cam luc » cam xuc, cau luc
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 cam 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 cam luc va thanh ve ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sac ky) OR (sai ky)) danh xa hoi. hieu van cam 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 cam luc va thanh ve ((cua tre) or (cua tu))*.