Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
chat xuc » chat huu, cam xuc, chao xu
van hanh » ban hanh, van anh, van ban
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
tu sach » thu sach, su sach, te sach
ve cau » ke cau, va cau, le cau
ve cac » va cac, vien cac

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