Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
hanh phan » thanh phan, anh phan, hanh han
thong dan » thong van, tuong dan, thong den
va thong » va thuong, va phuong, he thong
dan toan » van toan, dan than, manh toan
toan ban » van ban
phan va » phan van, nhan va, han va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chau tinh) or (((va tinh) or (may tinh)))) - hanh phan va thong thong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chau tinh) OR (((va tinh) OR (may tinh)))) - hanh phan va thong thong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chau tinh) or (((va tinh) or (may tinh)))) - hanh phan va thong thong dan toan ban*.