Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thong hong » thong thong, thong hoang, thong huong
hien hanh » dieu hanh
trang cua » tranh cua, tang cua, trung cua
cua thong » cua thuong, cua khong, cua tong
hong hanh » dong thanh, cong thanh, hong ha
hanh tuan » thanh tuan, anh tuan, manh tuan
hieu cua » dieu cua, bieu cua, hieu ca
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((hieu cua) OR (hieu qua))) or (hien hanh)) - hanh trang cua thong hong hanh tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu cua) OR (hieu qua))) OR (hien hanh)) - hanh trang cua thong hong hanh tuan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu cua) OR (hieu qua))) or (hien hanh)) - hanh trang cua thong hong hanh tuan cao*".