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
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
mang cua » manh cua, dung cua, ban cua
chan nan » chan nhan, chang nang, chai nang
doan » doanh, toan, soan

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