Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tich cau snippets" » "hoc lich cau snippets", "ho tich cau snippets", "hoc dich cau snippets", "hoc tich cac snippets", "hoc tich can snippets", "hoc tich cay snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc tich cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tich cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tich cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tich cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.