Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
va tinh » may tinh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu va cac luc ((va thanh) OR (va tinh)) di ((cua tu) OR (cua cu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu va cac luc ((va thanh) or (va tinh)) di ((cua tu) OR (cua cu))~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu va cac luc ((va thanh) or (va tinh)) di ((cua tu) OR (cua cu))*.