Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cuu » trinh cau, trinh cua, trinh chu
nong cong » tong cong, nang cong, dong cong
cong cong » cong dong, trong cong, dung cong
hoc dien » hoc hien, hoc vien, hoc dieu
dien anh » tieng anh, dien dan
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 dien anh - hanh trinh cuu ((nong cong) or (cong cong)) vang ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien anh - hanh trinh cuu ((nong cong) OR (cong cong)) vang ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc dien anh - hanh trinh cuu ((nong cong) or (cong cong)) vang ((toan cau) or (toan tap))*.