Perhaps you should try some spelling variations:
hanh than » hanh han, hanh nhan, hanh phan
than cui » than cua, than nui, thanh qui
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
su sach » vu sach
xuc van » duc van, luc van, vuc van
van bac » van ban, van bao, van hac
so sach » so sanh, bo sach, co sach
cui tre » cua tre, cuu tre, tuoi tre
ang xa » lang xa, mang xa, dang xay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ty ((ang xa) or (mang may)) hoi. hieu van bac xuc van hanh than cui tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty ((ang xa) OR (mang may)) hoi. hieu van bac xuc van hanh than cui tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty ((ang xa) or (mang may)) hoi. hieu van bac xuc van hanh than cui tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty ((ang xa) or (mang may)) hoi. hieu van bac xuc van hanh than cui tre*.