Perhaps you should try some spelling variations:
than thuong » thanh thuong, phan thuong, han thuong
trung thuoc » trung thuc, trung quoc, trung hoc
mach trung » manh trung, mach thuong, dac trung
thuoc sinh » hoc sinh, thu sinh, thuoc sach
sinh hoat » sinh hoc, sinh vat
hoc trong » hoc thuong, hoc tieng, dot trong
sach tren » sach tien, sach tranh
hoat hoc » hoa hoc, hoat ho, khoa hoc
tren hoc » truyen hoc, trung hoc, triet hoc
nha than » nha thanh, nha tran, nhan thanh
te mach » ke mach, te sach, tim mach
su sach » so sach, vu sach
cao nha » cao nhan, cac nha, cho nha

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te mach trung thuoc sinh hoat hoc trong ) or ( su sach tren hoc cao nha than thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te mach trung thuoc sinh hoat hoc trong ) OR ( su sach tren hoc cao nha than thuong )).
• Adding a wildcard symbol may retrieve word variants: (( te mach trung thuoc sinh hoat hoc trong ) or ( su sach tren hoc cao nha than thuong ))*.