Perhaps you should try some spelling variations:
cham cuu » cap cuu, chat cua
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
hieu ve » hieu van
hieu va » lieu va, hieu qua
cuu va » cuu van, cuu ve
cua te » cua tu
ma hoi » mai hoi, xa hoi, ma hoa

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 ((ly nang) or (vu quang)) ma hoi. ((hieu ve) OR (hieu va)) cham cuu va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly nang) OR (vu quang)) ma hoi. ((hieu ve) OR (hieu va)) cham cuu va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly nang) or (vu quang)) ma hoi. ((hieu ve) OR (hieu va)) cham cuu va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly nang) or (vu quang)) ma hoi. ((hieu ve) OR (hieu va)) cham cuu va hanh vai cua te*.