Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van chat » cao chat
ve chat » va chat
nang co » nang cao, nang doc, nang noi
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
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: thuat sach ky nang co hoc. hieu ((ve chat) or (van chat)) tuc va hanh ((ve cau) OR (ve cac)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang co hoc. hieu ((ve chat) OR (van chat)) tuc va hanh ((ve cau) OR (ve cac)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang co hoc. hieu ((ve chat) or (van chat)) tuc va hanh ((ve cau) OR (ve cac)) tren".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang co hoc. hieu ((ve chat) or (van chat)) tuc va hanh ((ve cau) OR (ve cac)) tren*.