Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
luat trong » suat trong, thuat trong, luat thuong
cong tac » cong ty
hanh cac » hang cac, nhanh cay, hanh va
hanh cat » hanh luat, nhanh cay, hanh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien thanh) or (chieu xanh)) - hanh trinh luat trong cong tac ((hanh cac) OR (hanh cat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (chieu xanh)) - hanh trinh luat trong cong tac ((hanh cac) OR (hanh cat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien thanh) or (chieu xanh)) - hanh trinh luat trong cong tac ((hanh cac) OR (hanh cat))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (chieu xanh)) - hanh trinh luat trong cong tac ((hanh cac) OR (hanh cat))*.