Perhaps you should try some spelling variations:
truong trung » tieng trung
dung truong » duong truong, dung trong, dung trung
danh trung » dang trung, dinh trung, thanh trung
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » manh tung, thanh trung, manh hung
trung toan » truong toan, trung tuan, trung tran
hieu xanh » hieu manh, hieu nganh, dieu hanh
cap dung » ap dung, cao dung, chan dung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (chieu xanh)) - ((danh trung) or (manh trung)) cap dung truong trung toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - ((danh trung) OR (manh trung)) cap dung truong trung toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (chieu xanh)) - ((danh trung) or (manh trung)) cap dung truong trung toan tap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (chieu xanh)) - ((danh trung) or (manh trung)) cap dung truong trung toan tap*.