Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
luong tai » dung tai, luong va
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
doan cau » toan cau, doan dau, doan cap

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 sang - canh tranh cua nhung ((((cong tap) or (cong tac))) or (luong tai)) doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - canh tranh cua nhung ((((cong tap) OR (cong tac))) OR (luong tai)) doan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - canh tranh cua nhung ((((cong tap) or (cong tac))) or (luong tai)) doan cau*.