Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh doi » trinh doc, trinh do, tinh hoc
tinh moi » dinh moi, sinh moi, tinh mo
nam thuc » nam thuoc, am thuc, nam thu
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
ve nam » he nam, va nam, le nam
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (te bao)) ky nang cao hoi. hieu ve nam thuc va ((tinh moi) OR (tinh doi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (te bao)) ky nang cao hoi. hieu ve nam thuc va ((tinh moi) OR (tinh doi)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (te bao)) ky nang cao hoi. hieu ve nam thuc va ((tinh moi) OR (tinh doi)) cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (te bao)) ky nang cao hoi. hieu ve nam thuc va ((tinh moi) OR (tinh doi)) cua triet*.