Perhaps you should try some spelling variations:
quan trong » gian trong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, mot chieu
tac doanh » cac doanh, tac danh, toan doanh
doanh cao » doanh co, doanh bao, doanh cho
hanh ban » thanh ban, hang ban, hanh han
hanh san » thanh san, khach san, thanh son
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((hanh ban) OR (hanh san)) quan trong cong tac doanh cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((hanh ban) OR (hanh san)) quan trong cong tac doanh cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((hanh ban) OR (hanh san)) quan trong cong tac doanh cao*.