Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh lap » thanh san, phan lap, thanh hai
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
ty nang » ky nang, ly nang, ty nong
ty hang » ly hang, thi hang, thu hang
hieu va » lieu va, hieu qua
cac dac » cac dan, cac dai, cac bac
dac va » duc va, day va, dat va
lap su » lap du, lap 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: thuat sach ((((ty nang) or (ty xang))) or (ty hang)) xa hoi. hieu va cac dac va thanh lap su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((((ty nang) OR (ty xang))) OR (ty hang)) xa hoi. hieu va cac dac va thanh lap su triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach ((((ty nang) or (ty xang))) or (ty hang)) xa hoi. hieu va cac dac va thanh lap su triet*.