Perhaps you should try some spelling variations:
van thanh » ban thanh
chat xuc » chat huu, cam xuc, chao xu
van hanh » ban hanh, van anh, van ban
van tuan » van quan, van ban, anh tuan
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang
de cua » le cua, te cua, dieu cua

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 cao hoi. hieu ve chat xuc ((van hanh) or (((van thanh) OR (van tuan)))) de cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cao hoi. hieu ve chat xuc ((van hanh) OR (((van thanh) OR (van tuan)))) de cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang cao hoi. hieu ve chat xuc ((van hanh) or (((van thanh) OR (van tuan)))) de cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoi. hieu ve chat xuc ((van hanh) or (((van thanh) OR (van tuan)))) de cua viet*.