Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
gia doanh » gia thanh, gia dinh, giai doan
tai cua » thai cua, tai cuc, tri cua
duc gia » quoc gia
sach ly » sach y, sach lo, sach hay
vang xa » lang xa, mang xa, ang xa
sach ty » sach y, sach tu, sach thu
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ly) or (sach ty)) vang xa hoi. hieu ((ve cam) OR (ve cac)) duc gia doanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach ty)) vang xa hoi. hieu ((ve cam) OR (ve cac)) duc gia doanh tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) or (sach ty)) vang xa hoi. hieu ((ve cam) OR (ve cac)) duc gia doanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) or (sach ty)) vang xa hoi. hieu ((ve cam) OR (ve cac)) duc gia doanh tai cua triet*.