Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh chau » thanh cha, thanh cham, thanh chu
hieu lang » hieu quang, nhieu tang, hieu van
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
cong van » cong san, song van, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu lang) or (chieu sang)) - hanh trang cua nhung ((cong van) OR (cong vang)) thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu lang) OR (chieu sang)) - hanh trang cua nhung ((cong van) OR (cong vang)) thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu lang) or (chieu sang)) - hanh trang cua nhung ((cong van) OR (cong vang)) thanh chau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu lang) or (chieu sang)) - hanh trang cua nhung ((cong van) OR (cong vang)) thanh chau*.