Perhaps you should try some spelling variations:
nang noi » nang doc
dam thuc » am thuc, dan thuc, nam thuc
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ra » nang ma, lang ra, nang ro
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
cua tu » cua tuc, cua su, cua cu

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 noi) or (nang ra)) hoi. hieu qua ((dam thuc) or (cam xuc)) xa hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang noi) OR (nang ra)) hoi. hieu qua ((dam thuc) OR (cam xuc)) xa hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang noi) or (nang ra)) hoi. hieu qua ((dam thuc) or (cam xuc)) xa hanh vai cua tu*.