Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
vien cua » viec cua, dien cua, tien cua
sang tao » hang tai
vuc van » duc van, luc van, thuc van
xuc van » duc van, luc van, xuc ban
vu cham » va cham, vu kham, tu cham
sang ky » sang kyo, dang ky, tang ky
hieu vu » hieu va, hieu ve, hieu su
tang ha » lang ha, tang ma, trung ha
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sang ky) or (sang tao)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh vien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sang ky) OR (sang tao)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh vien cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sang ky) or (sang tao)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh vien cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sang ky) or (sang tao)) tang ha noi. hieu vu cham ((xuc van) OR (vuc van)) thanh vien cua tre*.