Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va triet » va thiet, va trien, ve triet
hanh tai » hang tai, han tai, hinh tai
ky danh » ky dang
hay hoi » tay hoi, hay hon, hay noi
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
tuc van » thuc van, truc van, tuc va
te sac » te sach, te cac, te san
ky anh » ly anh, ty anh
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 sac ((ky anh) OR (ky danh)) hay hoi. 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 sac ((ky anh) OR (ky danh)) hay hoi. 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 sac ((ky anh) OR (ky danh)) hay hoi. hieu ve cac tuc van ((hanh tai) or (thanh tai)) va triet".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky anh) OR (ky danh)) hay hoi. hieu ve cac tuc van ((hanh tai) or (thanh tai)) va triet*.