Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong tran » cong tan, cong tuan, cong toan
tran van » luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu tinh) or (hieu lang)) - hanh ((trung cua) or (trung cap)) nhung cong tran van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (hieu lang)) - hanh ((trung cua) OR (trung cap)) nhung cong tran van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (hieu lang)) - hanh ((trung cua) or (trung cap)) nhung cong tran van ban*.