Perhaps you should try some spelling variations:
thi nang » thi cong, ki nang, thi hanh
dang xay » dang van, van xay
nam thuc » nam thuoc, am thuc, nam thu
te sach » toc sach
tu dang » thu dang, tu dong, su dang
xay hoi » xa hoi, tay hoi, cay phoi
nam duc » nam duoc, pham duc, nam buoc
sach tu » sach thu, cach tu, sach ty
va hang » van hang, va nang, va lang
di cua » doi cua, de cua, do 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 dang xay hoi. thi nang ((nam duc) OR (nam thuc)) va hang ((di cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu dang xay hoi. thi nang ((nam duc) OR (nam thuc)) va hang ((di cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu dang xay hoi. thi nang ((nam duc) OR (nam thuc)) va hang ((di cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach tu dang xay hoi. thi nang ((nam duc) OR (nam thuc)) va hang ((di cua) or (dai cua)) te*.