Perhaps you should try some spelling variations:
ban hanh » ban hang
thu nang » thi nang, thu hang, thu bang
va thanh » gia thanh, ban thanh, va tinh
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
doi cua » dai cua, hoi cua
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, me hoi
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 thu nang ((ma hoi) OR (ma hoa)). hieu va cam xuc ((ban hanh) or (va thanh)) doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang ((ma hoi) OR (ma hoa)). hieu va cam xuc ((ban hanh) OR (va thanh)) doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu nang ((ma hoi) OR (ma hoa)). hieu va cam xuc ((ban hanh) or (va thanh)) doi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach thu nang ((ma hoi) OR (ma hoa)). hieu va cam xuc ((ban hanh) or (va thanh)) doi cua te*.