Perhaps you should try some spelling variations:
thien van » thi van
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
ca tren » cau tren, cu tren, la tren
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
nam tu » nam thu, nam thuc
vit ca » viet ca, viet cau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu can ky nang x hoi. thien van nam tu ((va hanh) OR (va thanh)) vit ca tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang x hoi. thien van nam tu ((va hanh) OR (va thanh)) vit ca tren".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang x hoi. thien van nam tu ((va hanh) OR (va thanh)) vit ca tren*.