Perhaps you should try some spelling variations:
cau thuc » cau truc, cuu thuc, can thuc
hieu van » hieu va, thien van, lieu va
van dinh » van minh, van dich, xuan dinh
va dinh » va kinh, va tinh, vu dinh
van cau » van dau, van hau, van chat
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
di cuu » di cua, dinh cuu
di cau » da cau, diem cau
vu sac » vu sach, vu san, va sac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang xa hoi. hieu van cau thuc ((va dinh) OR (van dinh)) ((di cuu) or (di cau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang xa hoi. hieu van cau thuc ((va dinh) OR (van dinh)) ((di cuu) OR (di cau)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang xa hoi. hieu van cau thuc ((va dinh) OR (van dinh)) ((di cuu) or (di cau)) tre*".