Perhaps you should try some spelling variations:
thu huong » thu cong
vat thanh » dat thanh, gat thanh, tat thanh
thanh lai » thanh hai, thanh lap, thanh loi
thu nang » thi nang, thu hang, thu bang
hieu cua » hieu qua, dieu cua, bieu cua
nam thuc » nam thuoc, am thuc, nam thu
so sach » so sanh, bo sach, co sach
cua nam » cua tam, cua ngan, cua nhan
lai cua » dai cua, hai cua, lai chau
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 ((thu nang) or (thu huong)) xa hoi. hieu cua nam thuc vat thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((thu nang) OR (thu huong)) xa hoi. hieu cua nam thuc vat thanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ((thu nang) or (thu huong)) xa hoi. hieu cua nam thuc vat thanh lai cua te*.