Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
theo chau » theo chu, theo chieu, theo phap
chau tinh » cuu tinh, ha tinh, cua tinh
trinh cua » tinh cua, trinh luat, trinh quan
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: theo chau tinh - hanh trinh cua ((nhung cong) or (dung trong)) dan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chau tinh - hanh trinh cua ((nhung cong) OR (dung trong)) dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chau tinh - hanh trinh cua ((nhung cong) or (dung trong)) dan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo chau tinh - hanh trinh cua ((nhung cong) or (dung trong)) dan ((toan cau) OR (toan tap))*.