Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
hanh trinh » canh tranh, hanh chinh
thuat dang » thuat dung, thuat bang, thuat dan
hien xanh » hien hanh, hien nhanh, chieu xanh
dang cong » dung cong
chinh cau » chinh chau, chinh ca, chinh tai
chinh can » chinh ca, chinh ban, chinh ngan
cong dan » cong san, cong tan, huong dan

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 - hanh trinh thuat dang cong dan ((chinh cau) or (chinh can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh thuat dang cong dan ((chinh cau) OR (chinh can)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh thuat dang cong dan ((chinh cau) or (chinh can))*.