Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, dien bien
bieu hien » dieu khien, bien phien, bien nien
danh di » danh du, xanh di, danh dien
duoc va » nuoc va, duc va, duoc ma
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. ((dieu hien) OR (bieu hien)) bach ((tuc va) or (duoc va)) danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. ((dieu hien) OR (bieu hien)) bach ((tuc va) OR (duoc va)) danh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. ((dieu hien) OR (bieu hien)) bach ((tuc va) or (duoc va)) danh di cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. ((dieu hien) OR (bieu hien)) bach ((tuc va) or (duoc va)) danh di cua tre*.