Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap du hoc snippets" » "giap duc hoc snippets", "gap du hoc snippets", "giao duc hoc snippets", "giap tu hoc snippets", "giap duoc hoc 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: (((("giap du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap du hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap du hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.