Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung tuan, trung cap
tang luan » dung luan
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan lap » phan dau

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 - hanh ((trung cua) or (tang luan)) thong cong dan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trung cua) OR (tang luan)) thong cong dan phan lap*.