Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
va thanh » gia thanh, ban thanh, va tinh
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dai mac » dai dac
cua tre » cuu tre, cua triet, dua tren
tai ky » thai ky, trai ky, sai ky
va dai » va dao, vi dai, va dau
mac va » mac ca, tac va, ac va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu tai ky ((nang xa) or (lang xa)) hoi. hieu va dai mac va thanh doi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu tai ky ((nang xa) OR (lang xa)) hoi. hieu va dai mac va thanh doi ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu tai ky ((nang xa) or (lang xa)) hoi. hieu va dai mac va thanh doi ((cua tre) OR (cua te))*".