Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
thuc nano » truc nano, thuc hanh, chuc nang
nano cau » nang cau, bang cau, nano va
ban hanh » ban hang
te cach » ve cach, te sach, tu cach
van lam » van nam
van cau » van dau, van hau, van chat
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach thuc nano cau hoi. thien ((van lam) or (van cau)) cua ban hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach thuc nano cau hoi. thien ((van lam) OR (van cau)) cua ban hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te cach thuc nano cau hoi. thien ((van lam) or (van cau)) cua ban hanh vi ((cua tre) or (cuu tre))*.