Perhaps you should try some spelling variations:
tran hoang » tran hong, quan hoang, tran quang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tram » hanh tam, hanh trang, thanh tran
van hoang » van hoan, quan hoang, tuan hoang
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan tap » phan lap, han tap, pha tap
ha tinh » va tinh, may tinh

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 (ha tinh)) - hanh tram ((van hoang) OR (tran hoang)) cong tac phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (ha tinh)) - hanh tram ((van hoang) OR (tran hoang)) cong tac phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (ha tinh)) - hanh tram ((van hoang) OR (tran hoang)) cong tac phan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (ha tinh)) - hanh tram ((van hoang) OR (tran hoang)) cong tac phan tap*.