Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
cuu tre » cua tre, cau tren, cau treo
duc van » duc va, duc tan, duc manh
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va
can kho » can tho, can who, lan kho
cam duc » cam xuc, cao duc, pham duc
vi cuu » vi luu, vinh cuu
can ho » can tho, can bo, van 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 kho) OR (can ho)) tang xa hoi. ((hieu ve) or (hieu van)) cam duc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((can kho) OR (can ho)) tang xa hoi. ((hieu ve) OR (hieu van)) cam duc van hanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((can kho) OR (can ho)) tang xa hoi. ((hieu ve) or (hieu van)) cam duc van hanh vi cuu tre*".