Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
trung thanh » truong thanh
theo thieu » theo tieu, theo chieu, thep thiet
thong cong » trong cong, tong cong, thong thong
tran tuan » tran xuan, tran quang, tran thanh
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang 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: theo thieu quang - thanh ((trung thanh) or (tran tuan)) thong cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thieu quang - thanh ((trung thanh) OR (tran tuan)) thong cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: theo thieu quang - thanh ((trung thanh) or (tran tuan)) thong cong tan van ban*.