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