Perhaps you should try some spelling variations:
qua thanh » quan thanh, cua thanh, qua than
nang ma » tang ma, sang ma, nang cao
thuc va » thuc vat, thuc dan, thuc day
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di 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: tu sai ky nang ma hoi. hieu qua thanh ((xuc va) or (((duc va) or (thuc va)))) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu qua thanh ((xuc va) OR (((duc va) OR (thuc va)))) hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu qua thanh ((xuc va) or (((duc va) or (thuc va)))) hanh vi cua tu*.