Perhaps you should try some spelling variations:
sang dai » sang tai, lang dai, sang mai
va hanh » van hanh, va thanh, va danh
ky sang » ky nang, ky dang, ky tang
dai hoi » dai hoc, dai hai, dai moi
su chao » sau chan
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
vi cua » di cua
su cao » cu cao, vu cao, su co
sac ky » cac ky, sai ky
xu va » xu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky sang dai hoi. hieu ((su chao) or (su cao)) xu va hanh ((vi cua) or (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang dai hoi. hieu ((su chao) OR (su cao)) xu va hanh ((vi cua) OR (vai cua)) te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang dai hoi. hieu ((su chao) or (su cao)) xu va hanh ((vi cua) or (vai cua)) te*.