Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
thong cong » trong cong, tong cong, thong thong
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
than cap » khan cap, thanh cac, than cua

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: ho chieu xanh - hanh tranh va ((thong cong) OR (dung trong)) dan ((than cap) OR (thanh lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh tranh va ((thong cong) or (dung trong)) dan ((than cap) OR (thanh lap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh tranh va ((thong cong) or (dung trong)) dan ((than cap) OR (thanh lap))*.