Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
hoc duoc » hoc nuoc, hoa duoc, hoc dung
duoc gia » duoc giao, quoc gia, duc gia
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
hieu va » hieu qua
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) OR (sac ky)) lang xa hoi. ((hieu va) or (lieu va)) hoc duoc gia thanh tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) lang xa hoi. ((hieu va) OR (lieu va)) hoc duoc gia thanh tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sac ky)) lang xa hoi. ((hieu va) or (lieu va)) hoc duoc gia thanh tri cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sac ky)) lang xa hoi. ((hieu va) or (lieu va)) hoc duoc gia thanh tri cua te*.