Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
ty nang » ky nang, ty xang, ty nong
ly nang » ky nang, ly hang, ly vang
ty hang » ly hang, ty xang, thi hang
van cap » van cau, van dap, van ca
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: thu sach ((((ty nang) OR (ly nang))) or (ty hang)) x ho. hieu van cap cuu van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((((ty nang) OR (ly nang))) OR (ty hang)) x ho. hieu van cap cuu van hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((((ty nang) OR (ly nang))) or (ty hang)) x ho. hieu van cap cuu van hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach ((((ty nang) OR (ly nang))) or (ty hang)) x ho. hieu van cap cuu van hanh vi cua te*.