Perhaps you should try some spelling variations:
qua tham » qua cham, qua than, qua thanh
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
cua tre » cua te, cuu tre, cua triet
tang ha » lang ha, tang ma, trung ha
soc ban » coc ban, so ban, soc ba
ky tang » ky nang, ky dang, kho tang
hoc ban » hoc bang, hoc dan, hoc bai
te cao » te bao
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cao ky tang ha hoi. hieu qua tham ((soc ban) or (hoc ban)) ((thanh vi) OR (thanh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cao ky tang ha hoi. hieu qua tham ((soc ban) OR (hoc ban)) ((thanh vi) OR (thanh ve)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cao ky tang ha hoi. hieu qua tham ((soc ban) or (hoc ban)) ((thanh vi) OR (thanh ve)) cua tre*".