Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
nang mai » nang ma, nang tai, lang mai
van hanh » van thanh, ban hanh, van anh
va cham » va chat, va tham
cua tuc » cua duc, cua tu, luat tuc
vuc van » duc van, luc van, thuc van
su sach » so sach, vu sach
ve cham » ve chat, vu cham, ve chim
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, v nang

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 y nang mai hoi. hieu ((ve cham) or (va cham)) vuc van hanh vi ((cua tuc) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang mai hoi. hieu ((ve cham) OR (va cham)) vuc van hanh vi ((cua tuc) OR (cua thuoc)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang mai hoi. hieu ((ve cham) or (va cham)) vuc van hanh vi ((cua tuc) or (cua thuoc))*.