Perhaps you should try some spelling variations:
trong phat » trong thuat, trong nha, trong hoat
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
trung ha » trung hoc, trung tam, trung cap
tac than » tac thanh, tam than, bac thanh
tac nhan » tao nhan, cac nhan, dac nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - thanh ((trong phat) or (trung ha)) nhung cong ((tac than) or (tac nhan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh ((trong phat) OR (trung ha)) nhung cong ((tac than) OR (tac nhan)) cap.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh ((trong phat) or (trung ha)) nhung cong ((tac than) or (tac nhan)) cap*.