Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
cam duc » cao duc, pham duc, nam duoc
van cua » vang cua, ban cua, dan cua
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
te cac » tu cac, te cao, de cac
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
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: ((te cac) or (ve cac)) ky nang ma hoi. hieu ve ((cam duc) OR (cam xuc)) va doanh van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky nang ma hoi. hieu ve ((cam duc) OR (cam xuc)) va doanh van cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (ve cac)) ky nang ma hoi. hieu ve ((cam duc) OR (cam xuc)) va doanh van cua te*".