Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
va hanh » va thanh, va danh, ban hanh
cua tre » cuu tre, cua triet, dua tren
vu dan » vu dang, va dan, cu dan
dan ky » van ky
ve cam » ve cham, ve cac, va cam
cua te » cua tu
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: vu dan ky nang x hoi. hieu ve cam xuc ((va hanh) or (van hanh)) vi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu dan ky nang x hoi. hieu ve cam xuc ((va hanh) OR (van hanh)) vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu dan ky nang x hoi. hieu ve cam xuc ((va hanh) or (van hanh)) vi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: vu dan ky nang x hoi. hieu ve cam xuc ((va hanh) or (van hanh)) vi ((cua tre) OR (cua te))*.