Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau tren » cu tren, dau tren, ca tren
sang tao » hang tai
tai cau » tai cac, tai cao
tuc gia » duc gia, toc gia, luc gia
ve chat » va chat, van chat
tu sang » thu sang, tu san, tu lang
sang ky » sang kyo, dang ky, tang ky
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sang ky ((sang tao) or (nang ma)) hoi. hieu ve chat ((tuc gia) OR (tac gia)) thanh tai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sang ky ((sang tao) OR (nang ma)) hoi. hieu ve chat ((tuc gia) OR (tac gia)) thanh tai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sang ky ((sang tao) or (nang ma)) hoi. hieu ve chat ((tuc gia) OR (tac gia)) thanh tai cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sang ky ((sang tao) or (nang ma)) hoi. hieu ve chat ((tuc gia) OR (tac gia)) thanh tai cau tren*.