Perhaps you should try some spelling variations:
sang tao » hang tai
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua
cua te » cua tu

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) or (thu hoach)) ky ((mang may) or (sang tao)) hoi. hieu ve cam duc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky ((mang may) OR (sang tao)) hoi. hieu ve cam duc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky ((mang may) or (sang tao)) hoi. hieu ve cam duc va hanh vi cua te*.