Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
cong vinh » trong vinh, cong viec, cong viet
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: hoc ((hien xanh) OR (hien hanh)) - hanh trinh quan thong ((cong trinh) or (cong vinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - hanh trinh quan thong ((cong trinh) OR (cong vinh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien hanh)) - hanh trinh quan thong ((cong trinh) or (cong vinh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien hanh)) - hanh trinh quan thong ((cong trinh) or (cong vinh)) toan cau*.