Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh doanh » hang doanh, chinh doanh, doanh doanh
theo hieu » theo chieu, theo tieu, thien hieu
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
luan phan » luan van, luan hoan
van phan » van phong, van thanh, van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu quang - hanh doanh cua thong thong ((van phan) OR (luan phan)) tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu quang - hanh doanh cua thong thong ((van phan) OR (luan phan)) tai".
• Adding a wildcard symbol may retrieve word variants: theo hieu quang - hanh doanh cua thong thong ((van phan) OR (luan phan)) tai*.