Perhaps you should try some spelling variations:
doanh cua » doanh luan
hieu van » hieu va, thien van, lieu va
doanh va » doan va, doanh tai, hanh va
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
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: ve cac ky nang ma hoa. hieu van cam xuc va ((luan van) or (((doanh va) OR (doanh cua)))) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cac ky nang ma hoa. hieu van cam xuc va ((luan van) OR (((doanh va) OR (doanh cua)))) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ve cac ky nang ma hoa. hieu van cam xuc va ((luan van) or (((doanh va) OR (doanh cua)))) cua te*".