Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
va thanh » gia thanh, ban thanh, va tinh
cham luc » cham soc, nhan luc, cham cuu
va hanh » van hanh, va danh, ban hanh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te san » te ban, ke san, tu san
te sac » te sach, te cac
de va » de van, te va, ke va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te san)) ky lang xa hoi. hieu ve cham luc ((va hanh) OR (va thanh)) de va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky lang xa hoi. hieu ve cham luc ((va hanh) OR (va thanh)) de va trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (te san)) ky lang xa hoi. hieu ve cham luc ((va hanh) OR (va thanh)) de va trien".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky lang xa hoi. hieu ve cham luc ((va hanh) OR (va thanh)) de va trien*.