Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
khong thong » thong thong, thong thuong, phong chong
doanh phan » doanh nhan, doan phan, doanh thanh
hoc thiet » hoc thuyet, hoc hien, toc thieu
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (hoc thieu)) danh - canh manh cua ((khong thong) OR (khong trong)) doanh phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thieu)) danh - canh manh cua ((khong thong) OR (khong trong)) doanh phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (hoc thieu)) danh - canh manh cua ((khong thong) OR (khong trong)) doanh phan dau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thieu)) danh - canh manh cua ((khong thong) OR (khong trong)) doanh phan dau*.