Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
thanh va » thanh van, hanh va, thanh ha
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve tham » va tham, ve cham, vi tham
thuc va » thuc dan, thuc day
cua tre » cua te, cuu tre, dua tren
vu cao » cu cao, va cao

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

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