Perhaps you should try some spelling variations:
danh lai » danh sai, gianh lai, dinh lam
thu sac » thu sach, thu san, thu xac
lai cua » dai cua, hai cua, lai chau
qua cac » cua cac
cua tre » cua te, cuu tre, cua triet
thu ban » thu hang
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai
lo va » lo van, lao va, le va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sac) or (thu ban)) ky nang o hoi. hieu qua cac ((lo va) OR (ly va)) danh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu ban)) ky nang o hoi. hieu qua cac ((lo va) OR (ly va)) danh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sac) or (thu ban)) ky nang o hoi. hieu qua cac ((lo va) OR (ly va)) danh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sac) or (thu ban)) ky nang o hoi. hieu qua cac ((lo va) OR (ly va)) danh lai cua tre*.