Perhaps you should try some spelling variations:
sach ngang » sach nang, sach ngan, sach ngon
sach nhan » sach nha, sach han, sach ngan
cao khai » cao chat, co khi, cao tai
nhan con » nhan co, nhanh cong, phan cong
tu sach » thu sach, su sach, te sach
cho khi » co khi, cho ghi, chat khi
con khi » cong khi, co khi, con chi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach ngang ((cho khi) or (cao khai)) đong luc ) or ( tu sach nhan con khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach ngang ((cho khi) OR (cao khai)) đong luc ) OR ( tu sach nhan con khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach ngang ((cho khi) or (cao khai)) đong luc ) or ( tu sach nhan con khi đong luc ))*.