Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
kha nang » phap nang, ky nang, ki nang
nang doi » nang doc, nang noi, hang doi
sach kha » sach nha, sach ha, sach tham
te sach » toc sach
su tien » su kien, su hien, tu tieng
van cau » van dau, van hau, van chat
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac 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 kha nang xa hoi. thien van cau ((xuc va) OR (luc va)) nang doi ((cua triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach kha nang xa hoi. thien van cau ((xuc va) OR (luc va)) nang doi ((cua triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach kha nang xa hoi. thien van cau ((xuc va) OR (luc va)) nang doi ((cua triet) or (su tien))*".