Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
hanh trinh » canh tranh, hanh chinh
thuat dung » thuat hung, thuat ung, thuat xung
hien xanh » hien hanh, hien nhanh, chieu xanh
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
toan ban » van 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 hien xanh - hanh trinh thuat dung cong tan ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh thuat dung cong tan ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh thuat dung cong tan ((toan ban) or (toan tap))*.