Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nang chat » nang phat, nang cham, nang cao
doc sach » hoc sach, toc sach, nuoc sach
van hanh » ban hanh, van ban, van minh
chat huu » pham huu
van anh » tuan anh, van minh
sach ty » sach y, sach tu, sach thu
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ty nang chat huu. hieu ve cac duc ((((van hanh) OR (van anh))) or (van thanh)) vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ty nang chat huu. hieu ve cac duc ((((van hanh) OR (van anh))) OR (van thanh)) vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ty nang chat huu. hieu ve cac duc ((((van hanh) OR (van anh))) or (van thanh)) vi cua cau*".