Perhaps you should try some spelling variations:
trinh bat » trinh ban, trinh bao, trinh bay
va trinh » van trinh, va tinh, lap trinh
tu sach » thu sach, su sach, te sach
ty dang » ty xang, ky dang, ty hang
bat cua » ban cua, mat cua, bai cua
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
va dao » ca dao
cua tu » cua tuc, cua su, cua cu
ve cam » ve cham, ve cac, va cam
dang o » dang do, dang co, dang y
o hoi » co hoi, o hoc, o hai

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 ty dang o hoi. hieu ((ve cam) or (((va cham) or (va dao)))) duc va trinh bat cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty dang o hoi. hieu ((ve cam) OR (((va cham) OR (va dao)))) duc va trinh bat cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sach ty dang o hoi. hieu ((ve cam) or (((va cham) or (va dao)))) duc va trinh bat cua tu*.