Perhaps you should try some spelling variations:
phan thong » phan thuong, phan hong, phan tong
khoan phu » khoa phu, khoan phai, khoa thu
phu thong » pho thong, phap thong, khau thong
sach tren » sach tien, sach tranh
tren tinh » trien tinh, tien tinh, tre tinh
cach doan » cach hoan, hach toan, cac doanh
doan phan » doanh phan, toan phan, dan phan
sach tri » sach tai, sach truc, sach bai
tri thuc » tri tue
thuc cac » thuc cach, tuc cac, phuc cac
so sach » so sanh, bo sach, co sach
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach tri thuc cac khoan phu thong ) or ( te sach tren tinh cach doan phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach tri thuc cac khoan phu thong ) OR ( te sach tren tinh cach doan phan thong ))*.