Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
hieu su » hieu sau, tieu su, hieu so
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
su chao » su cao, sau chan
di cua » dai cua, doi cua, de cua
vi cua » vai cua
tu sac » tu sach, tu cac, tu san
ma hoi » mai hoi, xa hoi, ma hoa
xu va » xu van, tu va, su va

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

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