Perhaps you should try some spelling variations:
ban hanh » ban hang
vien cac » vien bach, vien dai, vien da
sanh ky » hanh ky, sang ky, nganh ky
tuc ban » thuc ban, truc ban, tu ban
nang xa » nang x, lang xa, nang ma
hai cua » thai cua, dai cua, hoi cua
so sanh » do sanh
ve cac » va cac
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc ban hanh ((di cua) or (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc ban hanh ((di cua) OR (hai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc ban hanh ((di cua) or (hai cua)) triet*".