Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
giai doanh » giai doan, trai doanh, lai doanh
chung minh » phung minh, thong minh, chinh minh
cong thong » cong thuong, cong trong, dong thong
giai cong » gia cong, giao cong, giai phong
sach han » sach tham, sach danh, sach nang
tu sach » thu sach, su sach, te sach
ve giai » va giai, ve giao, de giai
sach ha » sach nha, sach xa, bach ha
le giai » de giai, ly giai, ke giai
han ve » hanh ve, phan ve, hang ve
ha le » va le

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 han ve giai doanh chung minh ) or ( tu sach ha le giai cong thong (tin OR tinh) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach han ve giai doanh chung minh ) OR ( tu sach ha le giai cong thong (tin OR tinh) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sach han ve giai doanh chung minh ) or ( tu sach ha le giai cong thong (tin OR tinh) ))".
• Adding a wildcard symbol may retrieve word variants: (( tu sach han ve giai doanh chung minh ) or ( tu sach ha le giai cong thong (tin OR tinh) ))*.