Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
sach cam » sach cap, mach cam, sach tham
nang bac » bang bac, nang ban, dang bac
van hanh » ban hanh, van ban, van minh
su sach » so sach, vu sach
bac hoi » bac ho, bac hoc, sach hoi
hieu ve » hieu va, hieu van
van anh » tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
va cua » va chua, via cua, ca cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach cam nang bac hoi. hieu ve cam xuc ((((van hanh) OR (van anh))) or (van thanh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach cam nang bac hoi. hieu ve cam xuc ((((van hanh) OR (van anh))) OR (van thanh)) va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach cam nang bac hoi. hieu ve cam xuc ((((van hanh) OR (van anh))) or (van thanh)) va cua tre*".