Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cau thuc » cau truc, can thuc, cau phuc
cuu thuc » cuu tac
hanh vai » hanh vi, hanh va, hanh tai
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang cao hoi. ((hieu ve) or (lieu va)) ((cau thuc) OR (cuu thuc)) va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang cao hoi. ((hieu ve) OR (lieu va)) ((cau thuc) OR (cuu thuc)) va hanh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang cao hoi. ((hieu ve) or (lieu va)) ((cau thuc) OR (cuu thuc)) va hanh vai cuu tre*".