Perhaps you should try some spelling variations:
ban hanh » ban hang
te sach » toc sach
tu nang » tru nang, tu nano, tu lang
hanh di » hanh vi, hanh de, hang di
tu nong » tu dong, tu cong, tu tong
xua ban » xuat ban, cua ban, qua ban
di cua » dai cua, doi cua, de cua
va nam » van nam, ha nam
va nay » va ngay, va cay
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((tu nang) or (tu nong)) xa hoi. hieu ((va nam) OR (va nay)) xua ban hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tu nong)) xa hoi. hieu ((va nam) OR (va nay)) xua ban hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) or (tu nong)) xa hoi. hieu ((va nam) OR (va nay)) xua ban hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) or (tu nong)) xa hoi. hieu ((va nam) OR (va nay)) xua ban hanh di cua te*.