Perhaps you should try some spelling variations:
tranh nguoi » thanh nguoi, tinh nguoi, ran nguoi
nguoi sach » nguoi san, nuoc sach
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
thuc bach » truc bach, thuc cach, thuoc sach
sach hoa » sach ha, sach hoi, bach hoa
he trong » he thong, he trung, le trong
le trung » do trung
so canh » so sanh, bo canh, so danh
so sach » so sanh, bo sach, co sach
bach va » bach van, bach ha, sach va
va le » va de, vu le

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so canh tranh nguoi sach hoa he trong ) or ( so sach tren thuc bach va le trung ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so canh tranh nguoi sach hoa he trong ) OR ( so sach tren thuc bach va le trung )).
• Adding a wildcard symbol may retrieve word variants: (( so canh tranh nguoi sach hoa he trong ) or ( so sach tren thuc bach va le trung ))*.