Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
ky lang » ky nang, ky dang, ky tang
doi cua » dai cua, hoi cua
hieu ve » hieu van
cau luc » cau truc, cau phuc
su xac » pu xac, su cac
luc va » duc va, tuc va, loc va
cua te » cua tu
xac ky » cac ky, sac ky, bac ky
ha hoi » hoa hoi, ha noi, va hoi

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

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