Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuong so do snippets" » "tuong ho do snippets", "truong son do snippets", "cong so do snippets", "tuong so du snippets", "tuong so dk 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: (((("tuong so do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuong so do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuong so do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuong so do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.