Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang doi » hang di, hang loi, huong doi
sach ly » sach y, sach lo, sach ty
hanh di » hanh vi, hanh de, hang di
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
tuc va » thuc va, truc va, tuc xa
ve cac » va cac, vien cac

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 ly nang xa hoi. hieu ve cac ((duc va) or (tuc va)) ((hanh di) or (hang doi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ly nang xa hoi. hieu ve cac ((duc va) OR (tuc va)) ((hanh di) OR (hang doi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ly nang xa hoi. hieu ve cac ((duc va) or (tuc va)) ((hanh di) or (hang doi)) cua triet*.