Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
van cam » van nam, van lam, van cau
va hanh » va thanh, va danh, dao hanh
luu tre » luu tru, cuu tre, luy tre
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
vi luu » vi lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang cau hoi. hieu van cam xuc ((va hanh) or (((van hanh) OR (ban hanh)))) vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang cau hoi. hieu van cam xuc ((va hanh) OR (((van hanh) OR (ban hanh)))) vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang cau hoi. hieu van cam xuc ((va hanh) or (((van hanh) OR (ban hanh)))) vi luu tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang cau hoi. hieu van cam xuc ((va hanh) or (((van hanh) OR (ban hanh)))) vi luu tre*.