Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
van chien » van hien, van hieu, van tien
chien tre » chieu tro, hien te
nien bac » mien bac, vien bach, nhien bat
tien bac » mien bac, ten bac, vien bach
va trinh » van trinh, va tinh, lap trinh
tu sach » thu sach, su sach, te sach
dang xa » dang xay, lang xa, dang ha
nhue va » thue va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach _ dang xa hoi. thieu ((nien bac) OR (tien bac)) nhue va trinh van chien tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach _ dang xa hoi. thieu ((nien bac) OR (tien bac)) nhue va trinh van chien tre".
• Adding a wildcard symbol may retrieve word variants: tu sach _ dang xa hoi. thieu ((nien bac) OR (tien bac)) nhue va trinh van chien tre*.