Perhaps you should try some spelling variations:
bach luoc » bach tuoc, sach duoc, sach nuoc
hieu viec » nhieu viec, hieu ve, sieu viet
viec bach » vien bach, viec ban, viec bao
hanh cac » hang cac, hanh cat, nhanh cay
van hanh » van thanh, ban hanh, van anh
luoc van » luoc can, luoc va, luc van
cac cua » cach cua, cac qua, ca cua
su sach » vu sach
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
nang o » nang co, nang ho, nang ro
cua tu » cua tuc, cua su, cua cu
o hoi » co hoi, o hoc, o hai

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) OR (so sach)) ty nang o hoi. hieu viec bach luoc van hanh cac cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang o hoi. hieu viec bach luoc van hanh cac cua tu".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty nang o hoi. hieu viec bach luoc van hanh cac cua tu*.