Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
nang xa » nang x, lang xa, nang ma
vat dan » va dan, van dan, vat ran
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu ((va cam) or (va cao)) thuc vat dan vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((va cam) OR (va cao)) thuc vat dan vi cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((va cam) or (va cao)) thuc vat dan vi cua triet*.