Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chuc nang, chu bang
cuu nang » chuc nang, cam nang, cuu van
hang cua » mang cua, huong cua, thong cua
cong van » cong vang, cong san, song van
hang ca » hang va, nang cao, hang tai
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) or (cuu nang)) - hanh ((hang cua) or (hang ca)) nhung cong van ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (cuu nang)) - hanh ((hang cua) OR (hang ca)) nhung cong van ban can.
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) or (cuu nang)) - hanh ((hang cua) or (hang ca)) nhung cong van ban can*.