Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc mo canh snippets" » "hoc bo canh snippets", "hoc do canh snippets", "hoc mo danh snippets", "hoc moi canh snippets", "hoc mot canh snippets", "hoc mon canh 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 mo canh 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 mo canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc mo canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc mo canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.