Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
vai cua » dai cua, hai cua, lai cua
su sac » su sach, su xac
su cac » tu cac, su cao, su can
ve cau » ke cau, va cau, ve cac
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su cac)) ky nang x hoi. hieu ve cau luc van hanh ((vai cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky nang x hoi. hieu ve cau luc van hanh ((vai cua) OR (di cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky nang x hoi. hieu ve cau luc van hanh ((vai cua) or (di cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su cac)) ky nang x hoi. hieu ve cau luc van hanh ((vai cua) or (di cua)) tre*.