Perhaps you should try some spelling variations:
doan van » doan va, hoang van, luan van
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van bac » van ban, van hac, dan bac
van bao » van ban, van dao
va doan » va doanh, van doan, va dan
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
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 sach y nang xa hoi. hieu ((van bac) or (van bao)) tuc va doan van ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu ((van bac) OR (van bao)) tuc va doan van ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu ((van bac) or (van bao)) tuc va doan van ((cua tre) OR (cua te))*".