Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
dang xay » dang van, van xay
tham xuc » tham nuoc, tham thuc, pham duc
hanh de » hanh ve, hanh kem
lang xa » lang ha, lang van
san ky » sang ky, van ky, dan ky
tu san » thu san, tu ban, tu can
de su » den su, ve su, de tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((lang xa) OR (dang xay)) hoi. lieu va ((tham xuc) or (nham thuc)) van hanh de su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((lang xa) OR (dang xay)) hoi. lieu va ((tham xuc) OR (nham thuc)) van hanh de su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((lang xa) OR (dang xay)) hoi. lieu va ((tham xuc) or (nham thuc)) van hanh de su triet".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((lang xa) OR (dang xay)) hoi. lieu va ((tham xuc) or (nham thuc)) van hanh de su triet*.