Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
hanh hang » hang hang, hanh han, hanh mang
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc danh) or (chua xang)) - ((hanh hang) OR (thanh hang)) va hang cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chua xang)) - ((hanh hang) OR (thanh hang)) va hang cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chua xang)) - ((hanh hang) OR (thanh hang)) va hang cong san than cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chua xang)) - ((hanh hang) OR (thanh hang)) va hang cong san than cau*.