Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
vu sach » vu bach, vu khach
cua tre » cua te, cuu tre, cua triet
cam luc » cam xuc, cau luc
van cam » van nam, van lam, van cau
danh xa » danh ca, dinh xa, canh xa
ky danh » ky anh, ky dang
su sach » so sach
luc va » duc va, tuc va, loc va
cua su » qua 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) OR (su sach)) ky danh xa hoi. hieu van cam luc va thanh ve ((cua tre) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ky danh xa hoi. hieu van cam luc va thanh ve ((cua tre) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ky danh xa hoi. hieu van cam luc va thanh ve ((cua tre) or (cua su))".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ky danh xa hoi. hieu van cam luc va thanh ve ((cua tre) or (cua su))*.