Perhaps you should try some spelling variations:
khien hach » thien hach, khien thich, hien hanh
hach nuoc » sach nuoc, hoc nuoc, cac nuoc
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
so sac » so sach, so dac
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang x hoi. dieu khien hach nuoc va danh di ((cua tu) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang x hoi. dieu khien hach nuoc va danh di ((cua tu) OR (cua cu))*.