Perhaps you should try some spelling variations:
lang chai » lang ha, lang cua, lang phi
nang cap » nang cao, nang cham, nang phap
cap phoi » cap cho
hieu van » hieu va, thien van, lieu va
tan lang » tai lang, ban lang, lan lang
va triet » va thiet, va trien, ve triet
van cau » van dau, van hau, van chat
cau duc » cao duc, cau luc, chu duc
chai va » chat va, thai va, hai va
su cac » su cao, eu cac, su cau
su can » su van, su cao, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((su cac) or (tu cac))) or (su can)) ky nang cap phoi. hieu van cau duc tan lang chai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((su cac) OR (tu cac))) OR (su can)) ky nang cap phoi. hieu van cau duc tan lang chai va triet.
• Adding a wildcard symbol may retrieve word variants: ((((su cac) or (tu cac))) or (su can)) ky nang cap phoi. hieu van cau duc tan lang chai va triet*.