Perhaps you should try some spelling variations:
thang tai » tang tai, thanh tai, thong tai
cau treo » cau theo, cau tren, cau triet
sach thu » sach thue, sach thieu, sach tham
hang tai » hang va, dung tai
cao suc » cao su, cao duc
sach ty » sach y, sach tu, xach tay
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
suc va » duc va, tuc va, luc va
ve cao » va cao, ve bao, ve cac

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