Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu hien » bieu hien, dieu hien, chieu chien
thanh di » thanh doi, thanh de, thanh do
sach ky » sac ky, sach ty, sach kem
hien da » hien dai, vien da, hien du
nang xa » nang x, lang xa, nang ma
tac va » tac da, tuc va, tac ha
tac xa » tuc xa, tac da
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach y)) nang xa hoi. hieu hien da ((tac va) OR (tac xa)) thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang xa hoi. hieu hien da ((tac va) OR (tac xa)) thanh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach y)) nang xa hoi. hieu hien da ((tac va) OR (tac xa)) thanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) nang xa hoi. hieu hien da ((tac va) OR (tac xa)) thanh di cua triet*.