Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
thu sach » thuat sach, thuoc sach, thu hoach
nam thuc » nam thuoc, nam thu, nam tu
thanh vi » hanh vi, thanh va, thanh ve
tu sach » su sach, te sach, tu cach
xang xa » lang xa, mang xa, ang xa
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) ty xang xa hoi. lieu va ((nam thuc) OR (am thuc)) nhanh thanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ty xang xa hoi. lieu va ((nam thuc) OR (am thuc)) nhanh thanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (tu sach)) ty xang xa hoi. lieu va ((nam thuc) OR (am thuc)) nhanh thanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ty xang xa hoi. lieu va ((nam thuc) OR (am thuc)) nhanh thanh vi cua tu*.