Perhaps you should try some spelling variations:
thien van » thi van
cau triet » cau trieu, su triet, cua triet
cam thuc » am thuc, nam thuc, cam thu
danh hai » dang hai, lanh hai, manh hai
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
hai cau » hai chau, hai chu, hai hau
su sac » su sach, su cac
su xac » pu xac, su cac
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su xac)) ky nang ma hoi. thien van cam thuc va danh hai cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky nang ma hoi. thien van cam thuc va danh hai cau triet.
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su xac)) ky nang ma hoi. thien van cam thuc va danh hai cau triet*.