Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
chu sach » cau sach, thu sach, chieu sach
hau sach » khau sach, cau sach, ham sach
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu sach) or (hau sach)) - hanh trinh cua ((nhung cong) OR (thong cong)) tan tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu sach) OR (hau sach)) - hanh trinh cua ((nhung cong) OR (thong cong)) tan tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu sach) or (hau sach)) - hanh trinh cua ((nhung cong) OR (thong cong)) tan tran cao".
• Adding a wildcard symbol may retrieve word variants: chao ((chu sach) or (hau sach)) - hanh trinh cua ((nhung cong) OR (thong cong)) tan tran cao*.