Perhaps you should try some spelling variations:
thanh hoc » thanh hoa, than hoc, thanh ho
van thanh » ban thanh, van tuan
thu sach » thuat sach, thuoc sach, thu hoach
thi nang » thi cong, ki nang, thi hanh
xanh tai » hanh tai, anh tai, vanh tai
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh
va xanh » va hanh, va danh, va anh
buu tre » cuu tre

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) thi nang xa hoi. thi van thanh hoc va xanh tai buu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) thi nang xa hoi. thi van thanh hoc va xanh tai buu tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) thi nang xa hoi. thi van thanh hoc va xanh tai buu tre*.