Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham xuc » cam xuc, chat xuc, cham soc
thu bang » thu ban, chu bang, thu trang
thu hang » thi hang, thuc hanh, thu huong
doan van » doan va, hoang van, luan van
van doan » van doanh, van toan, van hoan
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
va cham » va chat, va tham

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu bang) or (thu hang)) xa hoi. hieu va cham xuc van doan van ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu bang) OR (thu hang)) xa hoi. hieu va cham xuc van doan van ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu bang) or (thu hang)) xa hoi. hieu va cham xuc van doan van ((cua tre) or (cua triet))*.