Perhaps you should try some spelling variations:
phat loc » hau loc, nhat loi, phap lo
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
hieu va » hieu qua
hanh le » thanh le, hanh de, manh le
hanh ve » hanh vi, hanh va, hanh kem
huu tre » huu tri, cuu tre, huu them
loc va » hoc va, luc va

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 ky nang cao hoi. ((hieu va) or (lieu va)) phat loc va ((hanh le) OR (hanh ve)) huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang cao hoi. ((hieu va) OR (lieu va)) phat loc va ((hanh le) OR (hanh ve)) huu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang cao hoi. ((hieu va) or (lieu va)) phat loc va ((hanh le) OR (hanh ve)) huu tre*".