Perhaps you should try some spelling variations:
lieu van » lieu va, hieu van, sieu van
hanh doi » thanh doi, hanh noi, hang doi
nam truc » nam truoc, nam thuc, nam trung
va hanh » van hanh, va thanh, va danh
nam tuc » nam thuc, nam tu, nam thuoc
tu cach » tu cac
nang ma » tang ma, sang ma, nang cao
tu sach » thu sach, su sach, te sach
doi cua » dai cua, hoi cua
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (tu sach)) ky nang ma hoi. lieu van ((nam tuc) OR (nam truc)) va hanh doi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (tu sach)) ky nang ma hoi. lieu van ((nam tuc) OR (nam truc)) va hanh doi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (tu sach)) ky nang ma hoi. lieu van ((nam tuc) OR (nam truc)) va hanh doi cua vat".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (tu sach)) ky nang ma hoi. lieu van ((nam tuc) OR (nam truc)) va hanh doi cua vat*.