Perhaps you should try some spelling variations:
nang tay » nang tai, nang tao, bang tay
hieu van » hieu va, thien van, lieu va
dam thuc » am thuc, dan thuc, nam thuc
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
tay hoi » tay ho, tao hoi, tay thai
su sai » su tai, su hai, su dai
sai ky » sac ky
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky nang tay hoi. hieu van ((dam thuc) or (cam xuc)) van hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang tay hoi. hieu van ((dam thuc) OR (cam xuc)) van hanh vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su sai ky nang tay hoi. hieu van ((dam thuc) or (cam xuc)) van hanh vi ve triet*.