Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cau treo » cau theo, cau tren, cau trieu
van hanh » van thanh, ban hanh, van anh
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
tu sach » thu sach, te sach, tu cach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky nang xa hoi. hieu ve cam xuc van hanh ve ((cau treo) OR (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ve cam xuc van hanh ve ((cau treo) OR (cau triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang xa hoi. hieu ve cam xuc van hanh ve ((cau treo) OR (cau triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang xa hoi. hieu ve cam xuc van hanh ve ((cau treo) OR (cau triet))*.