Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
hoc thieu » toc thieu, hoc hien
cong tac » cong ty
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: hoc thieu tinh - hanh trinh quan thong ((cong tac) or (cong san)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh trinh quan thong ((cong tac) OR (cong san)) ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh trinh quan thong ((cong tac) or (cong san)) ((toan cau) or (toan tap))*.