Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
van hanh » van thanh, ban hanh, van anh
van tuan » van quan, van ban, anh tuan
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
y nang » ky nang, ly nang, v nang

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 sach y nang xa hoi. hieu qua cam xuc ((van hanh) OR (van tuan)) vi ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu qua cam xuc ((van hanh) or (van tuan)) vi ((cua triet) OR (va triet))~".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu qua cam xuc ((van hanh) or (van tuan)) vi ((cua triet) OR (va triet))*.