Perhaps you should try some spelling variations:
thien van » thi van
dinh vai » dinh van, dinh vi, dinh va
hieu van » hieu va, lieu va
cuu tre » cua tre, cau tren, cau treo
vai cuu » vai cua
va dinh » van dinh, va kinh, va tinh
cam loc » cam lo
hieu ve » hieu va
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
loc va » hoc va, luc va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky dang xa hoi. ((hieu ve) or (((hieu van) OR (thien van)))) cam loc va dinh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang xa hoi. ((hieu ve) OR (((hieu van) OR (thien van)))) cam loc va dinh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky dang xa hoi. ((hieu ve) or (((hieu van) OR (thien van)))) cam loc va dinh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang xa hoi. ((hieu ve) or (((hieu van) OR (thien van)))) cam loc va dinh vai cuu tre*.