Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
thanh va » thanh van, hanh va, thanh ha
cao hoi » cau hoi, co hoi, cao hoc
hanh ve » hanh vi, hanh va, hanh kem
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac

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 (ve cac)) ky nang cao hoi. thien van nam thuc dan ((hanh ve) or (thanh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky nang cao hoi. thien van nam thuc dan ((hanh ve) OR (thanh va)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky nang cao hoi. thien van nam thuc dan ((hanh ve) or (thanh va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky nang cao hoi. thien van nam thuc dan ((hanh ve) or (thanh va)) cua triet*.