Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
duc gia » quoc gia
tu sach » thu sach, su sach, te sach
ve cac » va cac, vien cac
van ve » ban ve, van le, van vu

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 ((nang xa) or (hang tai)) hoi. hieu ve cac duc gia thanh ((van ve) OR (van de)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (hang tai)) hoi. hieu ve cac duc gia thanh ((van ve) OR (van de)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((nang xa) or (hang tai)) hoi. hieu ve cac duc gia thanh ((van ve) OR (van de)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (hang tai)) hoi. hieu ve cac duc gia thanh ((van ve) OR (van de)) triet*.