Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son trong ca snippets" » "son truong ca snippets", "song trong ca snippets", "ion trong ca snippets", "son trong cac snippets", "son trong van snippets", "son trong nha 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: (((("son trong ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son trong ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son trong ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son trong ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.