Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hay khong » bay khong, hang khong, hoac khong
va triet » va thiet, va trien, ve triet
hanh tai » hang tai, han tai, hinh tai
cac tuc » cac toc, cac tu, cac tac
tuc van » thuc van, truc van, tuc va
sach ky » sach y, sach ty, sach kem
hieu ve » hieu va, hieu van
anh hay » anh ha, anh han, anh xay
sac ky » cac ky, sai ky
ve cac » va cac, vien cac

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 ky) OR (sac ky)) anh hay khong. hieu ve cac tuc van ((hanh tai) or (thanh tai)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) anh hay khong. hieu ve cac tuc van ((hanh tai) OR (thanh tai)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) anh hay khong. hieu ve cac tuc van ((hanh tai) or (thanh tai)) va triet".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) anh hay khong. hieu ve cac tuc van ((hanh tai) or (thanh tai)) va triet*.