Perhaps you should try some spelling variations:
truong dinh » truong kinh, truong minh, truong thanh
dung truong » duong truong, dung trong, dung trung
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
hanh tong » hanh trong, hanh dong, hanh cong
quan dung » quang dung, quan duong, qua dung
dinh toan » tinh toan, hinh toan, minh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (hoc thieu)) xanh - ((hanh tong) OR (han tong)) quan dung truong dinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - ((hanh tong) OR (han tong)) quan dung truong dinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (hoc thieu)) xanh - ((hanh tong) OR (han tong)) quan dung truong dinh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) xanh - ((hanh tong) OR (han tong)) quan dung truong dinh toan ban*.