Perhaps you should try some spelling variations:
dinh tri » chinh tri
dua tren » dung tren
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
nay duc » ngay doc
va dinh » van dinh, va kinh, va tinh
te sai » te tai, te lai, te hai
te bai » te bao, te tai, te ban
va nay » va ngay, va cay
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sai) OR (te bai)) ky nang xa hoi. hieu va nay duc va dinh tri ((dua tren) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sai) OR (te bai)) ky nang xa hoi. hieu va nay duc va dinh tri ((dua tren) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) OR (te bai)) ky nang xa hoi. hieu va nay duc va dinh tri ((dua tren) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: ((te sai) OR (te bai)) ky nang xa hoi. hieu va nay duc va dinh tri ((dua tren) or (cua tu))*.