Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cua sinh » hoa sinh, va sinh
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
ha cua » hoa cua, hai cua, nha cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ha cua sinh - hanh trinh cua nhung cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ha cua sinh - hanh trinh cua nhung cong dan ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ha cua sinh - hanh trinh cua nhung cong dan ((toan cau) or (toan cao))*.