Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » hoc hien
cong vang » cong quang, cong ngang, cong san
cong lang » cong luong, cong quang, cong ngang
trung ap » trung cap, trung lap, trung tam
toan cao » toan ban, toan tap
ap dung » xay dung, van dung

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) or (toc thieu)) tach - hanh trung ap dung ((cong vang) or (cong lang)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tach - hanh trung ap dung ((cong vang) OR (cong lang)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tach - hanh trung ap dung ((cong vang) or (cong lang)) toan cao*.