Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"si rang cho snippets" » "si trang cho snippets", "si sang cho snippets", "si rong cho snippets", "si hang cho snippets", "sinh rang cho snippets", "si trong cho 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: (((("si rang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("si rang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( si rang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("si rang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.