Perhaps you should try some spelling variations:
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang co » nang cao, nang doc, nang noi
van dau » phan dau
hanh de » hanh ve, hanh kem
co loi » co hoi
xuc va » tuc va, luc va, xac va
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu nang co loi. hieu ((van dau) or (van dao)) ((xuc va) OR (duc va)) hanh de cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang co loi. hieu ((van dau) OR (van dao)) ((xuc va) OR (duc va)) hanh de cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang co loi. hieu ((van dau) or (van dao)) ((xuc va) OR (duc va)) hanh de cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach tu nang co loi. hieu ((van dau) or (van dao)) ((xuc va) OR (duc va)) hanh de cua vat*.