Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
sach thu » sach thue, sach thieu, sach tham
lang van » dang van, tang van, hoang van
sang tao » hang tai
va trinh » van trinh, va tinh, lap trinh
ve triet » va trien, su triet
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cam loc » cam lo
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va
van ve » van de, ban ve, van le

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu ((lang van) or (sang tao)) hoi. hieu ve cam loc va trinh van ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((lang van) OR (sang tao)) hoi. hieu ve cam loc va trinh van ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach thu ((lang van) or (sang tao)) hoi. hieu ve cam loc va trinh van ve triet*.