Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
danh dai » danh dau, danh di, danh sai
sach thu » sach thue, sach thieu, sach tham
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, xach tay
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach ty) OR (sach thu)) nang xa hoi. ((hieu ve) or (hieu va)) chat truc va danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach ty) OR (sach thu)) nang xa hoi. ((hieu ve) OR (hieu va)) chat truc va danh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach ty) OR (sach thu)) nang xa hoi. ((hieu ve) or (hieu va)) chat truc va danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ty) OR (sach thu)) nang xa hoi. ((hieu ve) or (hieu va)) chat truc va danh dai cua tre*.