Perhaps you should try some spelling variations:
thieu nien » thien nhien
ve triet » va trien
su triet » su viet, su tien
hanh dai » hanh tai, hanh dao, vanh dai
nien cac » vien cac, dien cac, bien cac
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
cac tuc » cac toc, cac tu, cac tac
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky ((nang xa) or (sang ma)) hoi. thieu nien cac tuc va hanh dai ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((nang xa) OR (sang ma)) hoi. thieu nien cac tuc va hanh dai ((su triet) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky ((nang xa) or (sang ma)) hoi. thieu nien cac tuc va hanh dai ((su triet) OR (ve triet))*".