Perhaps you should try some spelling variations:
giang lai » gianh lai, giang hai, giang lam
van giang » manh giang, tran giang, dan gian
hieu van » hieu va, thien van, lieu va
kho tang » cao tang
cham duc » pham duc, cham soc, pham duy
te sach » toc sach
lai cua » dai cua, hai cua, lai chau
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
ky tang » ky nang, ky dang, ky trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ky tang) or (kho tang)) xa hoi. ((hieu ve) OR (hieu van)) cham duc van giang lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky tang) OR (kho tang)) xa hoi. ((hieu ve) OR (hieu van)) cham duc van giang lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky tang) or (kho tang)) xa hoi. ((hieu ve) OR (hieu van)) cham duc van giang lai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky tang) or (kho tang)) xa hoi. ((hieu ve) OR (hieu van)) cham duc van giang lai cua tre*.