Perhaps you should try some spelling variations:
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
hanh hang » thanh hang, hang hang, hanh han
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
san thanh » ban thanh, van thanh, son thanh
thanh cau » thanh chau, thanh mau, nhanh cau

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