Perhaps you should try some spelling variations:
nhung phong » nhung phuong, nhung chong, nung phong
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » hoc hien
doanh cua » doanh luan
cua nhung » va nhung
phong van » phung van, thong van, phong va
thang cao » thong cao, nang cao, quang cao
thang lao » tang lao, thanh lap, thang loi

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) or (toc thieu)) tinh - hanh doanh cua nhung phong van ((thang cao) OR (thang lao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - hanh doanh cua nhung phong van ((thang cao) OR (thang lao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) tinh - hanh doanh cua nhung phong van ((thang cao) OR (thang lao))".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - hanh doanh cua nhung phong van ((thang cao) OR (thang lao))*.