Perhaps you should try some spelling variations:
thong muong » thong duong, thong huong, trong muong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
muong bang » cuong bang, muong sang, tuong bang
trinh qua » trinh quan, trinh cua, trinh quang
qua thong » qua trong, quang thong, suat thong
than cap » khan cap, thanh lap, thanh cac
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: theo chieu sach - hanh trinh qua thong muong bang ((than cap) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh trinh qua thong muong bang ((than cap) OR (toan cau))*.