Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
tang van » dang van, hoang van, trong van
ban hanh » ban hang
tu sach » su sach, te sach, tu cach
van hoi » van hoa, van hoc, van hoe
qua cau » quan cau, qua cac, qua ca
cau chu » cau chiu, ca chu, cac chu
chu ban » chu bang, chu han, chu van
cua tuc » cua duc, cua tu, cua thuoc
y tang » ky tang, 6 tang, 7 tang
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: ((tu sach) or (thu sach)) y tang van hoi. hieu qua cau chu ban hanh vi ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y tang van hoi. hieu qua cau chu ban hanh vi ((cua te) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y tang van hoi. hieu qua cau chu ban hanh vi ((cua te) or (cua tuc))*.