Perhaps you should try some spelling variations:
sanh trong » sinh trong, anh trong, hanh trong
trong thuc » trong thu, thuong thuc, trong thuat
khan thong » khap thong, nhan thong, phan thong
khoan khau » khoanh khac, khoa kham, khoa phau
khau thong » khau thuong, khap thong, khau tong
thuc cac » thuc cach, phuc cac, thac cac
kho khan » khoa kham, khoa than
thu sach » tu sach, thuat sach, thuoc sach
sach tri » sach tai, sach tren, sach truc
te sanh » te danh, te sach, te san
cac kho » cac khoi, cac khoa, cac khu
tri tuc » tri thuc, tri tue, tri tac
tuc cac » tu cac, tich cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sanh trong thuc cac kho khan thong ) or ( thu sach tri tuc cac khoan khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sanh trong thuc cac kho khan thong ) OR ( thu sach tri tuc cac khoan khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sanh trong thuc cac kho khan thong ) or ( thu sach tri tuc cac khoan khau thong ))*.