Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
canh trinh » canh tranh, hanh trinh, canh tinh
thong dan » thong van, tuong dan, thong den
trinh he » trinh han, trinh hoa, trinh thi
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) xanh - canh trinh he thong thong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) xanh - canh trinh he thong thong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) xanh - canh trinh he thong thong dan chan cau*.