Perhaps you should try some spelling variations:
cao nganh » cac nganh, cau nganh, tao nganh
sach danh » sach tranh, sach dao, sach dung
khong khi » khong he
cong khi » cong thai, cong ha, cong hai
su sach » so sach, vu sach
danh co » danh cho, doanh co, anh co
su cao » cu cao, vu cao, su co

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach danh co khi đong luc ) or ( su cao nganh ((cong khi) OR (khong khi)) đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach danh co khi đong luc ) OR ( su cao nganh ((cong khi) OR (khong khi)) đong luc ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( su sach danh co khi đong luc ) or ( su cao nganh ((cong khi) OR (khong khi)) đong luc ))*".