Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phau thong » phap thong, khau thong, phan thong
hoach dai » hoach dat, hoc dai, hoa dai
dai thuat » dai thua, giai thuat, ki thuat
sach khoa » bach khoa, sach nha, anh khoa
khoa phau » hoa phan, khoa kham, khoa than
thu tuong » tu tuong, thu huong, thuy duong
lenh dao » lanh dao, benh dai, minh dao
dao thuc » dan thuc, dao tuc, do thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh ho » anh tho, anh hoc, manh ho
ho thu » cho thue, hoai thu, hong thu

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 dai thuat sach khoa phau thong ) or ( tu lenh dao thuc anh ho thu tuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach dai thuat sach khoa phau thong ) OR ( tu lenh dao thuc anh ho thu tuong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach dai thuat sach khoa phau thong ) or ( tu lenh dao thuc anh ho thu tuong ))*.