Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tinh moi snippets" » "doi trinh moi snippets", "hoi tinh moi snippets", "don tinh moi snippets", "doi dinh moi snippets", "doi tinh doi snippets", "doi sinh moi 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: (((("doi tinh moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi tinh moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tinh moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tinh moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.