Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu vien » hieu hien, hieu viec, thieu nien
thanh doi » thanh loi, thanh moi, thanh do
tu sach » thu sach, su sach, te sach
vien da » vien dai, hien dai
duc van » duc va, duc tan, duc manh
doi cua » dai cua, hoi cua
cua tuc » cua duc, cua tu, cua thuoc
da duc » dao duc, da duoc, do duc
x hoi » o hoi, x ho, 5 hoi

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 hoach)) ky nang ((x hoi) or (xa hoi)). hieu vien da duc van thanh doi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky nang ((x hoi) OR (xa hoi)). hieu vien da duc van thanh doi cua tuc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky nang ((x hoi) or (xa hoi)). hieu vien da duc van thanh doi cua tuc*.