Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri sang cho snippets" » "tri bang cho snippets", "tri mang cho snippets", "tri hang cho snippets", "tri danh cho snippets", "tri dung cho snippets", "tri sang tao 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: (((("tri sang 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: (((("tri sang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri sang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri sang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.