Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
luan nhung » luan chung, luan hung, quan nhung
hanh tang » hanh trang, anh tang, hanh mang
trong van » trong cac
van van » tan van, san van, van vat

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 sang) OR (chieu xanh)) - ((hanh tang) or (canh tranh)) luan nhung trong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu xanh)) - ((hanh tang) OR (canh tranh)) luan nhung trong van van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (chieu xanh)) - ((hanh tang) or (canh tranh)) luan nhung trong van van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) OR (chieu xanh)) - ((hanh tang) or (canh tranh)) luan nhung trong van van ban*.