Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau treo » cau theo, cau tren, cau triet
hanh tai » hang tai, han tai, hinh tai
bao duc » dao duc, bao luc, cao duc
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
lang ha » long ha
lang xa » dang xay, lang van
hieu ve » hieu va, hieu van
ve bao » te bao, va bao

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 ty ((lang xa) OR (lang ha)) hoi. hieu ve bao duc va ((hanh tai) or (thanh tai)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (lang ha)) hoi. hieu ve bao duc va ((hanh tai) OR (thanh tai)) cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((lang xa) OR (lang ha)) hoi. hieu ve bao duc va ((hanh tai) or (thanh tai)) cau treo".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((lang xa) OR (lang ha)) hoi. hieu ve bao duc va ((hanh tai) or (thanh tai)) cau treo*.