Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach hoc mon snippets" » "cach thuc mon snippets", "cach thoi mon snippets", "dich hoc mon snippets", "cach hoc moi snippets", "cach hoc mot snippets", "cach hoc cong 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: (((("cach hoc mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach hoc mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach hoc mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach hoc mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.