Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
bach nuoc » bach tuoc, sach nuoc, bich ngoc
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va hanh, dia danh
co sac » co sach, co cac, cao sach
sac ky » cac ky, sai ky
va dan » ca dan, va dao, va dau
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sac ky nang xa hoi. hieu hien bach nuoc ((va danh) OR (va dan)) vi ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sac ky nang xa hoi. hieu hien bach nuoc ((va danh) OR (va dan)) vi ((cua tu) OR (cua su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sac ky nang xa hoi. hieu hien bach nuoc ((va danh) OR (va dan)) vi ((cua tu) or (cua su))*".