Perhaps you should try some spelling variations:
hoang tuong » hoang vuong, hoang trong, hoang tung
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trinh » hanh chinh
tuong manh » duong manh, luong manh, tung manh
cua hoang » cua hang, quan hoang, tuan hoang
manh van » anh van, menh van, canh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sang)) - ((canh tranh) or (hanh trinh)) cua hoang tuong manh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - ((canh tranh) OR (hanh trinh)) cua hoang tuong manh van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - ((canh tranh) or (hanh trinh)) cua hoang tuong manh van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - ((canh tranh) or (hanh trinh)) cua hoang tuong manh van ban*.