Perhaps you should try some spelling variations:
trinh dien » tinh dien, trinh tin
may trinh » may tinh, lap trinh, quy trinh
vien cac » vien bach, vien dai, gian cac
dien duc » dien cuc, dien luc, tien duc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vien da » vien dai, hien dai
tuc may » truc may, tu may, tuc xay
duc tre » duoc tren, duc tien

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 ky nang xa hoi. hieu ((vien cac) OR (vien da)) tuc may trinh dien duc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu ((vien cac) OR (vien da)) tuc may trinh dien duc tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ((vien cac) OR (vien da)) tuc may trinh dien duc tre*.