Perhaps you should try some spelling variations:
thu trong » thuc trong, thue trong, thuy trong
van thanh » ban thanh, van tuan
pham duy » pham duc
ban hanh » ban hang
so sach » so sanh, bo sach, hoc sach
co sach » bo sach, cuon sach, hoc sach
cac hoi » cac thoi, cac khoi, cau hoi
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
vi cua » vai cua, di cua
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: ((so sach) or (co sach)) thu trong cac hoi. hieu va pham duy ((van thanh) or (ban hanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) thu trong cac hoi. hieu va pham duy ((van thanh) OR (ban hanh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) thu trong cac hoi. hieu va pham duy ((van thanh) or (ban hanh)) vi cua te*.