Perhaps you should try some spelling variations:
thien hieu » thien nhien, thien chien, thien hue
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
phan cua » than cua, phat cua, han cua
nhan cua » nhat cua, nhan luc, nhan su
cong tac » cong ty
van chat » cao chat
tac van » tac vang, cac van, tac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien hieu lang - thanh ((phan cua) or (nhan cua)) thong cong tac van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien hieu lang - thanh ((phan cua) OR (nhan cua)) thong cong tac van chat.
• Adding a wildcard symbol may retrieve word variants: thien hieu lang - thanh ((phan cua) or (nhan cua)) thong cong tac van chat*.