Perhaps you should try some spelling variations:
hoach thuc » hoach thu, hoc thuc, cach thuc
thuc thuc » hoc thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » cac khoa, cac khoan, anh khoa
phu thong » pho thong, phap thong, khau thong
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
thuc bach » truc bach, thuoc sach, thuc hanh
bach khoa » anh khoa
khoa phu » khoa phau, khoa thu, hoa phu
te sach » toc sach
khoa he » hoa he, khoa hoc, khong he

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach thuc thuc cach khoa phu thong ) or ( te sach tren thuc bach khoa he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach thuc thuc cach khoa phu thong ) OR ( te sach tren thuc bach khoa he thong ))*.