Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
hieu van » hieu va, thien van, lieu va
vien cua » viec cua, dien cua, tien cua
va thanh » gia thanh, ban thanh, va tinh
cam luc » cam xuc, cau luc
van cam » van nam, van lam, van cau
vu sach » su sach, vu khach
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va

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 (vu bach)) ky ((nang xa) or (nang x)) hoi. hieu van cam luc va thanh vien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ky ((nang xa) OR (nang x)) hoi. hieu van cam luc va thanh vien cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) ky ((nang xa) or (nang x)) hoi. hieu van cam luc va thanh vien cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu bach)) ky ((nang xa) or (nang x)) hoi. hieu van cam luc va thanh vien cua tre*.