Perhaps you should try some spelling variations:
cham cuu » cap cuu, chat cua
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cua tre » cuu tre, cua triet, dua tren
hanh ly » khanh ly, hanh ky, hang ly
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
hieu ve » hieu van
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
cuu va » cuu van, cuu ve
cua te » cua tu

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 sang ma hoa. ((hieu ve) or (hieu va)) cham cuu va hanh ly ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang ma hoa. ((hieu ve) OR (hieu va)) cham cuu va hanh ly ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang ma hoa. ((hieu ve) or (hieu va)) cham cuu va hanh ly ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang ma hoa. ((hieu ve) or (hieu va)) cham cuu va hanh ly ((cua tre) OR (cua te))*.