Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
cua triet » cua viet, su triet, va triet
hien cac » thien cac, vien cac, hieu cac
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
tuc va » truc va, tuc xa, duc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang xa hoi. hieu hien cac ((tuc va) OR (thuc va)) hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang xa hoi. hieu hien cac ((tuc va) OR (thuc va)) hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu hien cac ((tuc va) OR (thuc va)) hanh vi cua triet*.