Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
rac thuat » cac thuat, va thuat, rac thai
hoc thuat » hoc thuyet, hoc thuc, hoc chat
ho chieu » theo chieu, hoc thieu, doi chieu
han cong » phan cong, hang cong, hanh cong
tam han » tam than, tam chan, tam hon

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - thanh trung tam han cong ((rac thuat) or (hoc thuat)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung tam han cong ((rac thuat) OR (hoc thuat)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung tam han cong ((rac thuat) or (hoc thuat)) cao*.