Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoc thanh » hoc nhanh, hoan thanh, hoc phan
sach moi » sach doi, sach hoi, bach mai
cong hoc » dong hoc, cong hoa, cong coc
tu sach » thu sach, su sach, te sach
moi tai » hoi tai, mo tai, moi thoi
pho hoc » phoi hoc, cho hoc, pho ho
hoc mai » hoc ma, hoc dai, hoc bai
nhan va » nhan tai, nhan dan, nhan tao

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 moi tai, nghien thu cong hoc thanh pho hoc mai ((hoi cua) or (hoi chuc)) nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach moi tai, nghien thu cong hoc thanh pho hoc mai ((hoi cua) OR (hoi chuc)) nhan va.
• Adding a wildcard symbol may retrieve word variants: tu sach moi tai, nghien thu cong hoc thanh pho hoc mai ((hoi cua) or (hoi chuc)) nhan va*.