Perhaps you should try some spelling variations:
nang co » nang cao, nang doc, nang noi
nang ra » nang ma, lang ra, nang ro
thuc va » thuc vat, thuc dan, thuc day
tu sac » tu sach, tu cac, tu san
tuc va » truc va, tuc xa, duc va
vi cua » vai cua, di cua
qua ca » qua cac, qua cua, qua cai
sac ky » cac ky, sai ky
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: tu sac ky ((nang co) or (nang ra)) hoi. hieu qua ca ((tuc va) or (thuc va)) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang co) OR (nang ra)) hoi. hieu qua ca ((tuc va) OR (thuc va)) hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang co) or (nang ra)) hoi. hieu qua ca ((tuc va) or (thuc va)) hanh vi cua tu*.