Perhaps you should try some spelling variations:
cua nuoc » cua quoc, cua nguoi, cua thuoc
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, pham duc
sach ty » sach y, sach tu, sach thu
tai cua » thai cua, tai cuc, tri cua
te sach » toc sach
hieu va » lieu va, hieu qua
hieu ve » hieu van
ang xa » lang xa, mang xa, dang xay
ty ang » ty xang, ty hang, ty anh

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 ty ang xa hoi. ((hieu ve) OR (hieu va)) ((cham xuc) or (cham soc)) van hanh tai cua nuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ang xa hoi. ((hieu ve) OR (hieu va)) ((cham xuc) OR (cham soc)) van hanh tai cua nuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ang xa hoi. ((hieu ve) OR (hieu va)) ((cham xuc) or (cham soc)) van hanh tai cua nuoc".
• Adding a wildcard symbol may retrieve word variants: te sach ty ang xa hoi. ((hieu ve) OR (hieu va)) ((cham xuc) or (cham soc)) van hanh tai cua nuoc*.