Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thanh ba » thanh bac, thanh bai, thanh ban
nam thuc » nam thuoc, am thuc, nam thu
thuc day » thuc dan, thuc vat
hanh tai » thanh tai, han tai, hinh tai
hang tai » hang va, dung tai
dau tren » dau tien, dat tren, dau tieng
su sach » so sach, vu sach
hieu le » hieu ve, hieu he, hieu ly
ba hoi » bia hoi, xa hoi, ba hoa
le nam » ly nam, he nam, le na

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 thi thanh ba hoi. hieu le nam thuc day ((hanh tai) or (hang tai)) dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi thanh ba hoi. hieu le nam thuc day ((hanh tai) OR (hang tai)) dau tren.
• Adding a wildcard symbol may retrieve word variants: su sach thi thanh ba hoi. hieu le nam thuc day ((hanh tai) or (hang tai)) dau tren*.