Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
thu sang » thu hang, thu san, thu bang
vien cua » viec cua, dien cua, tien cua
trung ha » trung hoc, trung tam, trung cap
luc van » luoc van, luu van, duc van
xuc van » duc van, vuc 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, tang van
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 ((tang ha) or (trung ha)) noi. hieu vu cham ((xuc van) OR (luc van)) thanh vien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky ((tang ha) OR (trung ha)) noi. hieu vu cham ((xuc van) OR (luc van)) thanh vien cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sang ky ((tang ha) or (trung ha)) noi. hieu vu cham ((xuc van) OR (luc van)) thanh vien cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sang ky ((tang ha) or (trung ha)) noi. hieu vu cham ((xuc van) OR (luc van)) thanh vien cua tre*.