Perhaps you should try some spelling variations:
"thep hinh may tinh f.c." » "thi hinh may tinh f.c.", "tap hinh may tinh f.c.", "phap hinh may tinh f.c.", "thep hanh may tinh f.c.", "thep trinh may tinh f.c.", "thep hinh bai tinh f.c.", "thep hinh may tinh bac.", "thep hinh may tinh duc.", "thep hinh may tinh pc."
"thep xanh va tinh hoc." » "heo xanh va tinh hoc.", "thep xanh va sinh hoc.", "thep xanh va tin hoc.", "thep xanh va hinh hoc.", "thep hanh va tinh hoc.", "thep xanh a tinh hoc.", "thep anh va tinh hoc."
"thep bang va tinh hoc." » "thien bang va tinh hoc.", "thai bang va tinh hoc.", "te bang va tinh hoc.", "thep bang va sinh hoc.", "thep bang va tin hoc.", "thep bang va hinh hoc.", "thep hang va tinh hoc.", "thep ban va tinh hoc.", "thep trang va tinh hoc."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("thep hinh may tinh f.c.") or ((("thep xanh va tinh hoc.") OR ("thep bang va tinh hoc."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thep hinh may tinh f.c.") OR ((("thep xanh va tinh hoc.") OR ("thep bang va tinh hoc.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"thep hinh may tinh f.c.\") or (((\"thep xanh va tinh hoc.\") OR (\"thep bang va tinh hoc.\"))))".
• Removing quotes may allow a broader search: (( thep hinh may tinh f.c. ) or ((( thep xanh va tinh hoc. ) OR ( thep bang va tinh hoc. )))).
• Adding a wildcard symbol may retrieve word variants: (("thep hinh may tinh f.c.") or ((("thep xanh va tinh hoc.") OR ("thep bang va tinh hoc."))))*.