Perhaps you should try some spelling variations:
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
cong vang » cong lang, cong quang, cong ngang
thanh mau » hanh mau, thanh san, thanh hai
cua bang » chua bang, cua ban, cua dang
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: hoc ((nhieu tang) or (chieu sang)) - hanh trung cua bang ((cong van) OR (cong vang)) thanh mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (chieu sang)) - hanh trung cua bang ((cong van) OR (cong vang)) thanh mau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((nhieu tang) or (chieu sang)) - hanh trung cua bang ((cong van) OR (cong vang)) thanh mau".
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (chieu sang)) - hanh trung cua bang ((cong van) OR (cong vang)) thanh mau*.