Perhaps you should try some spelling variations:
quan trong » gian trong
chu quang » chat quang, vu quang
nhanh ban » nhanh bac, nhanh ba, thanh ban
san chang » ban hang, dan chan, van khang
chang ban » hang ban, chang ran, chang nang
theo chu » theo chieu, cho chu, chao chu
ban quan » van quan
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu quang - nhanh ban quan trong cong san chang ban~.
• Adding a wildcard symbol may retrieve word variants: theo chu quang - nhanh ban quan trong cong san chang ban*.