Perhaps you should try some spelling variations:
cac trieu » cac tieu, cau trieu, cac kieu
cuc triet » cua triet, su triet, cau triet
dan dien » doan dien, danh dien, dan den
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
sach va » sach xa, sach ha, sach dao
nang xa » lang xa, nang ma, mang xa
te sach » toc sach
cham o » cham soc
va dan » ca dan, va dao, va dau
o va » do va, so va, co va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach va ((nang xa) OR (nang x)) hoi. hieu van cham o va dan dien ((cuc triet) or (cac trieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach va ((nang xa) OR (nang x)) hoi. hieu van cham o va dan dien ((cuc triet) OR (cac trieu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach va ((nang xa) OR (nang x)) hoi. hieu van cham o va dan dien ((cuc triet) or (cac trieu))".
• Adding a wildcard symbol may retrieve word variants: te sach va ((nang xa) OR (nang x)) hoi. hieu van cham o va dan dien ((cuc triet) or (cac trieu))*.