Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh tao » hanh tai, hanh dao, hanh tam
sach ky » sac ky, sach y, sach ty
truc va » thuc va, thuc vat, trung va
tu sach » thu sach, su sach, te sach
ve cham » ve chat, vu cham, ve chim
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
va cham » va chat, va tham
tuc va » thuc va, tuc xa, duc va

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 ky dang xa hoi. hieu ((ve cham) or (va cham)) ((tuc va) OR (truc va)) hanh tao va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. hieu ((ve cham) OR (va cham)) ((tuc va) OR (truc va)) hanh tao va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky dang xa hoi. hieu ((ve cham) or (va cham)) ((tuc va) OR (truc va)) hanh tao va triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xa hoi. hieu ((ve cham) or (va cham)) ((tuc va) OR (truc va)) hanh tao va triet*.