Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ban can cong snippets" » "ban can code snippets", "ban cac cong snippets", "ban cao cong snippets", "ban van cong snippets", "ban dan cong snippets", "ban hang cong snippets", "ban hanh cong snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("ban can cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("ban can cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( ban can cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("ban can cong snippets"))) or ("locating bug core snippets"))*.