Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
van thanh » ban thanh, van tuan
thanh dai » thanh hai, thanh tai, thanh dat
tu sach » thu sach, su sach, te sach
cao hoi » cau hoi, cao hoc, tao hoi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc van » duc va, duc tan, duc manh
co hoi » co hoc, co loi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat lanh)) ky nang ((cao hoi) or (co hoi)). hieu ve pham duc van thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat lanh)) ky nang ((cao hoi) OR (co hoi)). hieu ve pham duc van thanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat lanh)) ky nang ((cao hoi) or (co hoi)). hieu ve pham duc van thanh dai cua te*.