Perhaps you should try some spelling variations:
quang dung » quang trung, ung dung, cuong dung
chieu tinh » lieu tinh, chau tinh, kieu tinh
quan dung » quan duong, qua dung, quan dong
hanh hai » thanh hai, nhanh hai, hang hai
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 (trieu tinh)) - hanh hai ((quan dung) OR (quang dung)) cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (trieu tinh)) - hanh hai ((quan dung) OR (quang dung)) cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (trieu tinh)) - hanh hai ((quan dung) OR (quang dung)) cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (trieu tinh)) - hanh hai ((quan dung) OR (quang dung)) cong tan toan ban*.