Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoc thanh » hoan thanh, hoc phan, ha thanh
hoc nhanh » hoc nganh, hoc phan
thu sach » tu sach, thuat sach, thuoc sach
sach moi » sach doi, sach hoi, bach mai
nhan van » nhan dan, nhan va, phan van
moi tai » hoi tai, mo tai, moi thoi
pho hoc » phoi hoc, cho hoc, pho ho
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach moi tai, nghien thu cong ((hoc thanh) or (hoc nhanh)) pho hoc mai hoi ca nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach moi tai, nghien thu cong ((hoc thanh) OR (hoc nhanh)) pho hoc mai hoi ca nhan van.
• Adding a wildcard symbol may retrieve word variants: thu sach moi tai, nghien thu cong ((hoc thanh) or (hoc nhanh)) pho hoc mai hoi ca nhan van*.