Perhaps you should try some spelling variations:
thanh nien » thanh nhan, thanh liem, thanh nguyen
thanh vien » nhan vien, thanh van
hoc sach » hoc sinh, hoc anh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
hoc cac » hoc cao
soc va » hoc va, loc va, doc va
cua cu » cua chu, cua cau, cua su
o van » vo van, so van, do van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (hoc cac)) o van xay hoi. hieu va cham soc va ((thanh vien) or (thanh nien)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) o van xay hoi. hieu va cham soc va ((thanh vien) OR (thanh nien)) cua cu.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (hoc cac)) o van xay hoi. hieu va cham soc va ((thanh vien) or (thanh nien)) cua cu*.