Perhaps you should try some spelling variations:
thien ket » thien ke, thiet ke
vu thanh » su thanh, vu khanh, cuu thanh
cuu thuc » cuu tac
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
ket cuu » ket cau
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
luu tre » luu tru, cuu tre, luy tre
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: vu thanh ((ky lang) OR (ky dang)) xa hoi. thien ket cuu thuc va hanh vi luu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu thanh ((ky lang) OR (ky dang)) xa hoi. thien ket cuu thuc va hanh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: vu thanh ((ky lang) OR (ky dang)) xa hoi. thien ket cuu thuc va hanh vi luu tre*.