Perhaps you should try some spelling variations:
tai nhanh » tai thanh, thai thanh, tai chinh
thai cua » than cua, tai cuc, dai cua
cham duc » pham duc, cham soc, pham duy
ve cham » va cham, ve chat, vu cham
duc tai » duc thai, luc tai, duc tan
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
su sach » so sach, vu sach
su sac » su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su sach)) ky tang xa hoi. hieu ve cham duc tai nhanh ((thai cua) or (tri cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky tang xa hoi. hieu ve cham duc tai nhanh ((thai cua) OR (tri cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky tang xa hoi. hieu ve cham duc tai nhanh ((thai cua) or (tri cua)) triet".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su sach)) ky tang xa hoi. hieu ve cham duc tai nhanh ((thai cua) or (tri cua)) triet*.