Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
bach tuoc » sach duoc, sach nuoc
hoc sach » hoc sinh, hoc cac, hoc anh
co sach » cuon sach
nang xa » nang x, lang xa, nang ma
tuoc va » thuoc va, nuoc va, duoc va
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

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