Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
dung khoa » dung cho
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh 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: theo chieu xanh - hanh ((hang khoa) OR (dung khoa)) thong cong hach toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh ((hang khoa) OR (dung khoa)) thong cong hach toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ((hang khoa) OR (dung khoa)) thong cong hach toan cao*.