Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hang xa » hoang xa, hang ca, lang xa
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
va cao » va cac, va co, va dao
vi cua » vai cua, di cua
cua te » cua tu
su va » su van, tu va

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 ty ((hang xa) OR (hang va)) hoi. hieu va cao su va hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((hang xa) OR (hang va)) hoi. hieu va cao su va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((hang xa) OR (hang va)) hoi. hieu va cao su va hanh vi cua te*.