Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
manh trung » manh tung, thanh trung, manh hung
theo dieu » theo tieu, theo chieu, thuoc dieu
dieu danh » dieu hanh, tieu danh, dia danh
trung cap » truong cao, trung tam
hang cong » dang cong, hang nong, bang cong
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu danh - manh trung cap ((nhung cong) OR (hang cong)) dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu danh - manh trung cap ((nhung cong) OR (hang cong)) dan ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dieu danh - manh trung cap ((nhung cong) OR (hang cong)) dan ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo dieu danh - manh trung cap ((nhung cong) OR (hang cong)) dan ((toan tap) or (toan ban))*.