Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
chat xuc » chat huu, cam xuc, chao xu
hang cau » hang dau, hang ca, nhung cau
hieu van » hieu va, thien van, lieu va
tu sach » su sach, te sach, tu cach
ly hang » ly quang
hieu ve » hieu va
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vi cua » vai cua, di cua
cua te » cua tu
xuc va » duc va, tuc 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: ((thu sach) OR (tu sach)) ly hang cau hoi. ((hieu ve) or (hieu van)) chat xuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ly hang cau hoi. ((hieu ve) OR (hieu van)) chat xuc va danh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ly hang cau hoi. ((hieu ve) or (hieu van)) chat xuc va danh vi cua te*".