Perhaps you should try some spelling variations:
tang dai » tang tai, tang dan, lang dai
cham xuc » cam xuc, chat xuc, cham soc
sach ty » sach y, sach tu, sach thu
dai hoi » dai hoc, dai hai, dai moi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va luan » vay luan, van luan, va quan
van cua » vang cua, ban cua, dan cua
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sac ky) or (sach ty)) tang dai hoi. hieu ve cham xuc va luan van cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sac ky) OR (sach ty)) tang dai hoi. hieu ve cham xuc va luan van cua su*.