Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
dong cua » dung cua, huong cua, thong cua
cong cua » cong cu, huong cua, thong cua
cong tan » cong tac, cong san, cong thanh
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 xanh - anh ((dong cua) OR (cong cua)) dung cong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - anh ((dong cua) OR (cong cua)) dung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh ((dong cua) OR (cong cua)) dung cong tan toan cao*.