Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien tach » thien hach, chiet tach, vien bach
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac
va dung » van dung, va duong, vat dung

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 tach - hanh trinh va dung cong dan ((than cau) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tach - hanh trinh va dung cong dan ((than cau) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien tach - hanh trinh va dung cong dan ((than cau) OR (than cap))*.