Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chi thanh » chi nhanh, thi thanh, cho thanh
lanh manh » lanh tranh, lan anh, van manh
hang cong » dang cong, hang nong, bang cong
chi hanh » chi nhanh, thi hanh, chi anh
manh cua » doanh cua, ban cua
dan chan » dan gian, dan ca, van chat
chan tu » phan tu, han tu, chon tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi hanh) OR (chi thanh)) - lanh manh cua ((nhung cong) or (hang cong)) dan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi hanh) OR (chi thanh)) - lanh manh cua ((nhung cong) OR (hang cong)) dan chan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi hanh) OR (chi thanh)) - lanh manh cua ((nhung cong) or (hang cong)) dan chan tu".
• Adding a wildcard symbol may retrieve word variants: doi ((chi hanh) OR (chi thanh)) - lanh manh cua ((nhung cong) or (hang cong)) dan chan tu*.