Perhaps you should try some spelling variations:
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
xa khanh » xa thanh, van khanh, dat khanh
sach thi » sach thu, sach tai, sach thieu
toc sach » hoc sach, doc sach, thuoc sach
thi hanh » thi thanh
hieu va » lieu va, hieu qua
cac toc » cac toi, cac thoi
hanh xa » hanh va, hanh ma, hanh xu
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thi hanh xa hoi. hieu va ((cac nuoc) or (cac toc)) xa khanh ((vai cua) OR (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thi hanh xa hoi. hieu va ((cac nuoc) OR (cac toc)) xa khanh ((vai cua) OR (hai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach thi hanh xa hoi. hieu va ((cac nuoc) or (cac toc)) xa khanh ((vai cua) OR (hai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: toc sach thi hanh xa hoi. hieu va ((cac nuoc) or (cac toc)) xa khanh ((vai cua) OR (hai cua)) triet*.