Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cho voi chat snippets" » "cho voi code snippets", "cho voi nhat snippets", "cho van chat snippets", "cho hop chat snippets", "choi voi chat snippets", "cho moi chat snippets", "pho voi chat 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: (((("cho voi chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho voi chat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cho voi chat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho voi chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.