Perhaps you should try some spelling variations:
van hang » van khang, van hoang, van thang
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
y nang » ly nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ve) or (hieu va)) cam tuc van hang va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ve) OR (hieu va)) cam tuc van hang va su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ve) or (hieu va)) cam tuc van hang va su triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) OR (ky nang)) xa hoi. ((hieu ve) or (hieu va)) cam tuc van hang va su triet*.