Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
sach ty » sach y, sach tu, sach thu
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach kem
va cao » va cac, va co, va dao
lo van » le van, vo van, so van
cao lo » cao do, cam lo, cao so
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 ky) OR (sach ty)) dang xa hoi. hieu va cao lo van ((thanh san) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) dang xa hoi. hieu va cao lo van ((thanh san) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) dang xa hoi. hieu va cao lo van ((thanh san) or (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach ty)) dang xa hoi. hieu va cao lo van ((thanh san) or (hanh tai)) cua te*.