Perhaps you should try some spelling variations:
sanh trong » sinh trong, anh trong, hanh trong
trong thuc » trong thu, thuong thuc, trong thuat
thuc cach » thuoc sach, truoc cach, thuc hanh
cach tri » cach thoi, cac tro, cach noi
tri thuc » tri tue
cach hoa » cach hoan, cach hoc, bach hoa
thuc cac » tuc cac, phuc cac, thac cac
khoan he » khoa he, khoan ke, khoan le
tu cach » tu cac
te sanh » te danh, te sach, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cach tri thuc cach hoa hoc thuong ) or ( te sanh trong thuc cac khoan he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach tri thuc cach hoa hoc thuong ) OR ( te sanh trong thuc cac khoan he thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach tri thuc cach hoa hoc thuong ) or ( te sanh trong thuc cac khoan he thong ))*.