Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
loai hoc » logic hoc, loai khoa, dai hoc
qua nhat » qua hoat, luc nhat, qua hai
nhat tuc » nhat tu, nhat nuoc, luat tuc
ky sang » ky nang, ky dang, duy sang
ky tang » ky nang, ky dang, kho tang
lai hoa » dai hoa
tuc gia » tac gia, duc gia, toc gia
vai cua » dai cua, hai cua, lai cua
tu san » thu san, tu ban, tu can
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 san ((ky sang) or (ky tang)) ((lai hoa) OR (loai hoc)). hieu qua nhat tuc gia thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky sang) OR (ky tang)) ((lai hoa) OR (loai hoc)). hieu qua nhat tuc gia thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ((ky sang) or (ky tang)) ((lai hoa) OR (loai hoc)). hieu qua nhat tuc gia thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ((ky sang) or (ky tang)) ((lai hoa) OR (loai hoc)). hieu qua nhat tuc gia thanh vai cua te*.