Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
lang van » dang van, tang van, hoang van
cua tre » cua te, cuu tre, dua tren
cham so » cham soc, cham o, ham so
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay
va cham » va chat, va tham
so ban » sao ban, so bang, co ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach _ ((lang xa) or (lang van)) hoi. hieu va cham so ban thanh hai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach _ ((lang xa) OR (lang van)) hoi. hieu va cham so ban thanh hai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach _ ((lang xa) or (lang van)) hoi. hieu va cham so ban thanh hai ((cua tre) or (cua triet))*.