Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
thanh do » thanh de, thanh pho, thanh hoa
van cam » van nam, van lam, van dam
xuc gia » duc gia, luc gia, tuc gia
van cau » van dau, van hau, van chat
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
sac ky » cac ky, sai ky
do cau » dao cau, bo cau, co cau
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky ((nang xa) OR (nang ma)) hoi. thi ((van cam) or (van cau)) xuc gia thanh do cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((nang xa) OR (nang ma)) hoi. thi ((van cam) OR (van cau)) xuc gia thanh do cau theo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((nang xa) OR (nang ma)) hoi. thi ((van cam) or (van cau)) xuc gia thanh do cau theo".
• Adding a wildcard symbol may retrieve word variants: su sac ky ((nang xa) OR (nang ma)) hoi. thi ((van cam) or (van cau)) xuc gia thanh do cau theo*.