Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dinh moi snippets" » "do dinh moi snippets", "doi kinh moi snippets", "doi tinh moi snippets", "doi dinh so snippets", "doi dinh tri snippets", "doi dinh thi 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 dinh 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 dinh moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dinh moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dinh moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.