Perhaps you should try some spelling variations:
dong tuong » dong thuong, dong thong, dong trong
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, mot chieu
trinh cua » tinh cua, trinh luat, trinh quan
tuong ban » tuong bang, trong ban, tuong dan
cua dong » chua dong, cua cong, cua dang
ban toan » bai toan, ban than, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (hoc hien)) xanh - hanh trinh cua dong tuong ban toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc hien)) xanh - hanh trinh cua dong tuong ban toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc hien)) xanh - hanh trinh cua dong tuong ban toan cau*.