Perhaps you should try some spelling variations:
chau treo » cau treo, cau theo, chau tho
thien van » thi van
lanh hai » manh hai, thanh hai, lang chai
danh hai » dang hai, manh hai, danh hau
cam thuc » am thuc, nam thuc, cam thu
van cam » van nam, van lam, van cau
sach ly » sach y, sach lo, sach ty
thuc va » thuc vat, thuc dan, thuc day
ly nang » ky nang, ly hang, ly vang
su sach » so sach, vu sach

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 ly nang ((ma hoa) or (xa hoi)). thien van cam thuc va ((danh hai) OR (lanh hai)) chau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang ((ma hoa) OR (xa hoi)). thien van cam thuc va ((danh hai) OR (lanh hai)) chau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang ((ma hoa) or (xa hoi)). thien van cam thuc va ((danh hai) OR (lanh hai)) chau treo".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang ((ma hoa) or (xa hoi)). thien van cam thuc va ((danh hai) OR (lanh hai)) chau treo*.