Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - manh ((tung cua) OR (dung cua)) ((nhung cong) OR (dung cong)) dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - manh ((tung cua) OR (dung cua)) ((nhung cong) or (dung cong)) dan than cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - manh ((tung cua) OR (dung cua)) ((nhung cong) or (dung cong)) dan than cau*.