Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
xa trong » xa truong, ca trong, va trong
nam thuc » nam thuoc, am thuc, nam thu
doi cua » dai cua, hoi cua
thuc xa » thuc xay, tuc xa, thuc va
qua nam » quan nam, cua nam, quang nam
co sach » bo sach, cuon sach, hoc sach
nang xa » lang xa, nang ma, mang xa
so sanh » do sanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co sach) or (so sanh)) ty ((nang xa) or (nang x)) hoi. hieu qua nam thuc xa trong doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (so sanh)) ty ((nang xa) OR (nang x)) hoi. hieu qua nam thuc xa trong doi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((co sach) or (so sanh)) ty ((nang xa) or (nang x)) hoi. hieu qua nam thuc xa trong doi cua triet*.