Perhaps you should try some spelling variations:
quan thuc » luan thuc, qua thuc, quan chuc
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
thuc va » thuc vat, thuc dan, thuc day
danh va » doanh va, anh va, dan va
hanh va » hang va, hanh vi
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu qua quan thuc va ((danh va) OR (hanh va)) cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu qua quan thuc va ((danh va) OR (hanh va)) cau treo".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu qua quan thuc va ((danh va) OR (hanh va)) cau treo*.