Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thuoc xa » thuoc va, thuoc la, thuoc tai
thuoc ma » hoc ma, duoc ma
ca tren » cau tren, cu tren, la tren
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
tai ca » tai cac, tai cao, tai cua

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 nang ((ma hoi) or (xa hoi)). liem ha nam ((thuoc xa) OR (thuoc ma)) thanh tai ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (xa hoi)). liem ha nam ((thuoc xa) OR (thuoc ma)) thanh tai ca tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((ma hoi) or (xa hoi)). liem ha nam ((thuoc xa) OR (thuoc ma)) thanh tai ca tren".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ma hoi) or (xa hoi)). liem ha nam ((thuoc xa) OR (thuoc ma)) thanh tai ca tren*.