Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
dinh tai » dinh toai, dinh tri, dinh thi
van chat » cao chat
va dinh » van dinh, va kinh, va tinh
tu sach » thu sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
tuc va » thuc va, truc va, tuc xa
tai su » tai so, tai tu, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((ve cham) or (van chat)) tuc va dinh tai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((ve cham) OR (van chat)) tuc va dinh tai su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang xa hoi. hieu ((ve cham) or (van chat)) tuc va dinh tai su triet*".