Perhaps you should try some spelling variations:
lam duoc » nam duoc, luat duoc, lam thuoc
dang van » hoang van, hang va
hieu van » thien van, lieu va, hieu ve
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang van hoi. ((hieu van) OR (hieu va)) lam duoc ((le thanh) or (may tinh)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang van hoi. ((hieu van) OR (hieu va)) lam duoc ((le thanh) OR (may tinh)) hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky dang van hoi. ((hieu van) OR (hieu va)) lam duoc ((le thanh) or (may tinh)) hai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky dang van hoi. ((hieu van) OR (hieu va)) lam duoc ((le thanh) or (may tinh)) hai cua tre*.