Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
cham duc » pham duc, cham soc, pham duy
cua tre » cua te, cuu tre, cua triet
han tai » nhan tai, van tai, toan tai
hieu va » lieu va, hieu qua
va cham » va chat, va tham
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
tu san » thu san, tu ban, tu can
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (tu san)) ky tang xa hoi. hieu va cham duc va ((han tai) OR (hang tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (tu san)) ky tang xa hoi. hieu va cham duc va ((han tai) OR (hang tai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (tu san)) ky tang xa hoi. hieu va cham duc va ((han tai) OR (hang tai)) cua tre*".