Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
cac thuc » cach thuc, cac thu, can thuc
anh thuc » am thuc, dan thuc, anh tu
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach v nang xa hoi. hieu va ((cac thuc) or (anh thuc)) van hanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v nang xa hoi. hieu va ((cac thuc) OR (anh thuc)) van hanh vi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach v nang xa hoi. hieu va ((cac thuc) or (anh thuc)) van hanh vi ((cua triet) or (va triet))*.