Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
dinh sach » sinh sach, tinh sach, chinh sach
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
tac chong » cac chuong, cac cong, cac chung
chong cau » cong cau, thong cau, chong chay
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: do dinh sach - hanh trinh ((cua thong) OR (cua khong)) cong tac chong cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "do dinh sach - hanh trinh ((cua thong) OR (cua khong)) cong tac chong cau".
• Adding a wildcard symbol may retrieve word variants: do dinh sach - hanh trinh ((cua thong) OR (cua khong)) cong tac chong cau*.