Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
hieu su » hieu sau, tieu su, hieu so
ky sang » ky nang, ky dang, ky tang
va tinh » may tinh
mai hoi » mai khoi, dai hoi, lai hoi
su chao » su cao, sau chan
chao tu » chao xu, cho tu, cao tu
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi
cua te » cua tu

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 su chao tu ((va thanh) OR (va tinh)) vi 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 su chao tu ((va thanh) OR (va tinh)) vi 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 su chao tu ((va thanh) OR (va tinh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((ma hoi) or (mai hoi)). hieu su chao tu ((va thanh) OR (va tinh)) vi cua te*.