Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
viec cac » viec cua, viec lam, viec va
va danh » va dinh, va dan, dia danh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, ban hanh
va cua » va chua, via cua, ca cua
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ky lang xa hoi. hieu ((viec cac) or (vien cac)) luc ((va danh) OR (va hanh)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky lang xa hoi. hieu ((viec cac) OR (vien cac)) luc ((va danh) OR (va hanh)) va cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ky lang xa hoi. hieu ((viec cac) or (vien cac)) luc ((va danh) OR (va hanh)) va cua te*".