Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
duc van » duc va, duc tan, duc manh
hanh ve » hanh vi, hanh va, hanh kem
anh ve » anh va, anh viet, thanh ve

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