Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
su sach » so sach, vu sach
lap cua » lai cua, tap cua, lam cua
thuc va » thuc vat, thuc dan, thuc day
van lam » van nam
sach ty » sach y, sach tu, sach thu
van cam » van nam, van cau, van dam
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang
tuc va » truc va, tuc xa, duc va
co loi » co hoi
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: su sach ty nang co loi. hieu ((van cam) OR (van lam)) ((tuc va) or (thuc va)) thanh lap cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang co loi. hieu ((van cam) OR (van lam)) ((tuc va) OR (thuc va)) thanh lap cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang co loi. hieu ((van cam) OR (van lam)) ((tuc va) or (thuc va)) thanh lap cua su".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang co loi. hieu ((van cam) OR (van lam)) ((tuc va) or (thuc va)) thanh lap cua su*.