Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
hieu so » thieu so
ky sang » ky nang, ky dang, ky tang
vai cua » dai cua, hai cua, lai cua
mai hoi » mai khoi, dai hoi, lai hoi
cho tu » choi tu, chon tu, cho cu
vi cua » di cua
tu sac » tu sach, tu cac, tu san
so cho » mo cho, so chu
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi

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 ((ma hoi) or (mai hoi)). hieu so cho tu va thanh ((vi cua) OR (vai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ((ma hoi) OR (mai hoi)). hieu so cho tu va thanh ((vi cua) OR (vai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ((ma hoi) or (mai hoi)). hieu so cho tu va thanh ((vi cua) OR (vai cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((ma hoi) or (mai hoi)). hieu so cho tu va thanh ((vi cua) OR (vai cua)) te*.