Perhaps you should try some spelling variations:
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
trung va » truong va, trang va, trung ha
tu sach » thu sach, su sach, te sach
thuc va » thuc dan, thuc day
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ve cau » ke cau, va cau, ve cac
vi cua » vai cua, di cua
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: tu sach tay lang xa hoi. hieu ve cau ((((thuc va) OR (thuc vat))) or (trung va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tay lang xa hoi. hieu ve cau ((((thuc va) OR (thuc vat))) OR (trung va)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tay lang xa hoi. hieu ve cau ((((thuc va) OR (thuc vat))) or (trung va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach tay lang xa hoi. hieu ve cau ((((thuc va) OR (thuc vat))) or (trung va)) hanh vi cua te*.