Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
su sach » vu sach
so sach » so sanh, bo sach, co sach
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
truc va » thuc va, thuc vat, trung va
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ly nang xa hoi. hieu qua cac ((duc va) or (truc va)) hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ly nang xa hoi. hieu qua cac ((duc va) OR (truc va)) hanh vi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ly nang xa hoi. hieu qua cac ((duc va) or (truc va)) hanh vi su triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ly nang xa hoi. hieu qua cac ((duc va) or (truc va)) hanh vi su triet*.