Perhaps you should try some spelling variations:
hien bach » vien bach, thien hach, hien hanh
hieu hien » bieu hien, dieu hien, chieu chien
bach nuoc » bach tuoc, sach nuoc, bich ngoc
co sach » bo sach, cuon sach, hoc sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tuc » cua duc, cua thuoc, luat tuc
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ty lang xa hoi. hieu hien bach nuoc va danh vi ((cua tu) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ty lang xa hoi. hieu hien bach nuoc va danh vi ((cua tu) OR (cua tuc))*.