Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
co cua » con cua, ca cua, cong cua
o cua » do cua, bo cua, ho cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((o cua) OR (co cua)) sinh - ((hanh tranh) or (hanh trang)) cua dung cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((o cua) OR (co cua)) sinh - ((hanh tranh) OR (hanh trang)) cua dung cong tan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((o cua) OR (co cua)) sinh - ((hanh tranh) or (hanh trang)) cua dung cong tan than cap".
• Adding a wildcard symbol may retrieve word variants: ((o cua) OR (co cua)) sinh - ((hanh tranh) or (hanh trang)) cua dung cong tan than cap*.