Perhaps you should try some spelling variations:
cach thuce » sach thue
cach thuc » anh thuc, cac thu
hieu van » hieu va, thien van, lieu va
cam truc » cau truc, nam truc, lam truoc
danh hoi » danh hoa, dan hoi, danh hoc
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((cach thuc) or (cach thuce)) nang xa hoi. hieu van cam truc va danh hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((cach thuc) OR (cach thuce)) nang xa hoi. hieu van cam truc va danh hoi cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((cach thuc) or (cach thuce)) nang xa hoi. hieu van cam truc va danh hoi cua tre*.