Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat lanh, thuat xay
manh minh » manh binh, manh tinh, manh linh
minh vai » minh va, minh hai, minh ai
qua cac » cua cac
cac suc » cao suc, cac nuoc, cac cuoc
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

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: ((thuat san) OR (thuat song)) _ tang ((ma hoi) OR (ma hoa)). hieu qua cac suc manh minh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat san) or (thuat song)) _ tang ((ma hoi) OR (ma hoa)). hieu qua cac suc manh minh vai cua te~".
• Adding a wildcard symbol may retrieve word variants: ((thuat san) or (thuat song)) _ tang ((ma hoi) OR (ma hoa)). hieu qua cac suc manh minh vai cua te*.