Perhaps you should try some spelling variations:
than thong » than thuong, toan thong, tran thong
khap thong » phap thong, khau thong, khac thuong
khoa khap » khoa kham, khoa khac, kho khan
thai thuc » thai thuy, thai tuc, tham thuc
thuc bach » truc bach, thuc cach, thuoc sach
khoa than » khoa luan, hoa thai, hoa tan
cach nao » cach bao, cach giao, cach noi
nao thuc » nam thuc, bao thuc, vao thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
tu cach » tu cac
tu toc » tu hoc, tu goc, tu tot

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 nao thuc anh khoa khap thong ) or ( tu toc thai thuc bach khoa than thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach nao thuc anh khoa khap thong ) OR ( tu toc thai thuc bach khoa than thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach nao thuc anh khoa khap thong ) or ( tu toc thai thuc bach khoa than thong ))*.