Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
dat thanh » dao thanh, dat khanh, dang thanh
thu hang » thi hang, thuc hanh, thu huong
thu nang » thi nang, thu bang, tho nang
thuc dat » thuc vat, thuc dan, thuc day
nam thuc » nam thuoc, am thuc, nam thu
qua nam » quan nam, cua nam, quang nam
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach
chau te » chau tho

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 (bo sach)) ((thu nang) or (thu hang)) xa hoi. hieu qua nam thuc dat thanh lai chau te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ((thu nang) OR (thu hang)) xa hoi. hieu qua nam thuc dat thanh lai chau te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) ((thu nang) or (thu hang)) xa hoi. hieu qua nam thuc dat thanh lai chau te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) ((thu nang) or (thu hang)) xa hoi. hieu qua nam thuc dat thanh lai chau te*.