Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chiu trach
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

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