Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cau treo » cau theo, cau tren, cau triet
nam thuc » nam thuoc, am thuc, nam thu
hanh hai » nhanh hai, hang hai, hanh tai
thuc va » thuc vat, thuc dan, thuc day
so sach » so sanh, bo sach, co sach
hieu va » lieu va, hieu qua
ly hang » ly quang
ly nang » ky nang, ly vang, ly quang
ma hoi » mai hoi, xa hoi, ma hoa
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ly nang) or (ly hang)) ma hoi. hieu va nam thuc va ((hanh hai) OR (thanh hai)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ly nang) OR (ly hang)) ma hoi. hieu va nam thuc va ((hanh hai) OR (thanh hai)) cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ly nang) or (ly hang)) ma hoi. hieu va nam thuc va ((hanh hai) OR (thanh hai)) cau treo".
• Adding a wildcard symbol may retrieve word variants: so sach ((ly nang) or (ly hang)) ma hoi. hieu va nam thuc va ((hanh hai) OR (thanh hai)) cau treo*.