Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh da » thanh dat, thanh dam, thanh dan
vu sach » vu bach, vu khach
tu cach » tu cac
su sach » so sach
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
da cau » dat cau, va cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((vu sach) or (tu cach))) or (su sach)) ky nang xa hoi. lieu va cam tuc va thanh da cau thi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((vu sach) OR (tu cach))) OR (su sach)) ky nang xa hoi. lieu va cam tuc va thanh da cau thi.
• Adding a wildcard symbol may retrieve word variants: ((((vu sach) or (tu cach))) or (su sach)) ky nang xa hoi. lieu va cam tuc va thanh da cau thi*.