Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
luan nhung » luan chung, luan hung, quan nhung
sang than » cang thang, dang thanh, sang tao
chi sach » chinh sach, chieu sach, co sach
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
san than » san thanh, ban than, van than
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - ((anh tang) or (anh dang)) luan nhung cong ((san than) or (sang than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((anh tang) OR (anh dang)) luan nhung cong ((san than) OR (sang than)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((anh tang) or (anh dang)) luan nhung cong ((san than) or (sang than)) cau*.