Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
cau thuc » cau truc, cuu thuc, cau phuc
can thuc » dan thuc, van thuc, cay thuc
hanh dai » hanh tai, hanh dao, vanh dai
dang ha » dong ha, dung ha, lang ha
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
lanh y » anh y, hanh y, lanh lay
y dang » ky dang, 2 dang, _ dang
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh y dang ha hoi. hieu ve ((cau thuc) or (can thuc)) va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y dang ha hoi. hieu ve ((cau thuc) OR (can thuc)) va hanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat lanh y dang ha hoi. hieu ve ((cau thuc) or (can thuc)) va hanh dai cua tre*.