Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
hieu quang » thieu quang, hieu quan, hieu qua
chieu sach » chinh sach, chieu sang, chieu xanh
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
trong van » trong cac
van thanh » ban thanh, van tuan
manh cua » doanh cua, ban cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu quang) or (((chieu sach) OR (chiet tach)))) - canh manh cua nhung trong van thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu quang) OR (((chieu sach) OR (chiet tach)))) - canh manh cua nhung trong van thanh san*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu quang) or (((chieu sach) OR (chiet tach)))) - canh manh cua nhung trong van thanh san*".