Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kinh can ho snippets" » "minh can ho snippets", "kinh van ho snippets", "tinh can ho snippets", "kinh can tho snippets", "kinh can bo 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: (((("kinh can ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kinh can ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kinh can ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kinh can ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.