Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thieu anh » chieu xanh, thien danh, thieu nhi
thien anh » thien danh, tien anh, thien thanh
thanh cua » tranh cua, than cua, hanh cua
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

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