Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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) OR (hieu manh))) or (chieu tinh)) - thanh tung cua dung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (hieu manh))) OR (chieu tinh)) - thanh tung cua dung cong tan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thieu xanh) OR (hieu manh))) or (chieu tinh)) - thanh tung cua dung cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) OR (hieu manh))) or (chieu tinh)) - thanh tung cua dung cong tan van ban*.