Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
suat trong » suat thong, luat trong, thuat trong
trinh toan » tinh toan, thanh toan, trinh han
hoc thieu » toc thieu, hoc hien
hanh tang » anh tang, hanh mang, hanh tung
ho chieu » theo chieu, doi chieu, mot chieu
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - ((hanh tang) OR (hanh trang)) suat trong cong trinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) xanh - ((hanh tang) or (hanh trang)) suat trong cong trinh toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) xanh - ((hanh tang) or (hanh trang)) suat trong cong trinh toan ban*.