Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
xuc ban » duc ban, cuc ban, quoc ban
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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 y nang mai hoi. hieu ve cam ((xuc van) or (xuc ban)) thanh ((vai cua) OR (hai cua)) duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang mai hoi. hieu ve cam ((xuc van) OR (xuc ban)) thanh ((vai cua) OR (hai cua)) duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang mai hoi. hieu ve cam ((xuc van) or (xuc ban)) thanh ((vai cua) OR (hai cua)) duc".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang mai hoi. hieu ve cam ((xuc van) or (xuc ban)) thanh ((vai cua) OR (hai cua)) duc*.