Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
doanh ban » doanh bat, doanh nhan, doanh luan
doanh van » doan van, doanh va, doanh nhan
cua thong » cua thuong, cua khong, cua tong
thong dan » thong van, tuong dan, thong den
lanh ban » lanh bang, lang ban, tranh ban
dan toan » van toan, dan than, manh toan
toan ban » 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: hoc thieu xanh - ((lanh ban) or (((doanh ban) OR (doanh van)))) cua thong thong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((lanh ban) OR (((doanh ban) OR (doanh van)))) cua thong thong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((lanh ban) or (((doanh ban) OR (doanh van)))) cua thong thong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((lanh ban) or (((doanh ban) OR (doanh van)))) cua thong thong dan toan ban*.