Perhaps you should try some spelling variations:
thanh hoa » thanh pho
va triet » va thiet, va trien, ve triet
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
y nang » ky nang, ly nang, v nang
xuc va » tuc va, luc va, xac va
hoa va » hoa van, hoa xa, hoa vo

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang xa hoi. ((lieu va) or (hieu va)) cac ((xuc va) OR (duc va)) thanh hoa va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. ((lieu va) OR (hieu va)) cac ((xuc va) OR (duc va)) thanh hoa va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. ((lieu va) or (hieu va)) cac ((xuc va) OR (duc va)) thanh hoa va triet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. ((lieu va) or (hieu va)) cac ((xuc va) OR (duc va)) thanh hoa va triet*.