Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc thieu » toc thieu
trung vap » trung cap, trung va, trung van
dung cong » dung trong
vap dung » van dung, ap dung, va dung
cong san » cong tac
san toan » van toan, dan toan, manh 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 thieu) or (hoc hien)) xanh - thanh trung vap dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - thanh trung vap dung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - thanh trung vap dung cong san toan ban*.