Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hieu lang » chieu sang, nhieu tang, hieu van
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
cong sach » ong sach, song sach, duong sach
sang sach » mang sach, ban sach, sang tac
manh cua » doanh cua, ban cua
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (hieu quang)) - canh manh cua nhung ((cong sach) or (sang sach)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu quang)) - canh manh cua nhung ((cong sach) OR (sang sach)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu quang)) - canh manh cua nhung ((cong sach) or (sang sach)) toan cau*.