Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
duc gia » quoc gia
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
sac ky » cac ky
ve cua » le cua, de cua, te 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 y) or (((sac ky) OR (sai ky)))) lang xa hoi. hieu ve cac duc gia thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach y) OR (((sac ky) OR (sai ky)))) lang xa hoi. hieu ve cac duc gia thanh ve cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach y) or (((sac ky) OR (sai ky)))) lang xa hoi. hieu ve cac duc gia thanh ve cua tre*".