Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
cong thanh » dong thanh, cong tan, truong thanh
cua nhung » va nhung
chu xanh » chu manh, chieu xanh, chua xang
cua chu » sua chua
than ma » than man, than va, khan ma

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cua chu xanh - ((hanh tranh) OR (hanh trinh)) cua nhung ((cong thanh) OR (cong trinh)) than ma~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chu xanh - ((hanh tranh) or (hanh trinh)) cua nhung ((cong thanh) OR (cong trinh)) than ma~".
• Adding a wildcard symbol may retrieve word variants: cua chu xanh - ((hanh tranh) or (hanh trinh)) cua nhung ((cong thanh) OR (cong trinh)) than ma*.