Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chong ma cac snippets" » "chong ma code snippets", "chong mai cac snippets", "cuong ma cac snippets", "chong my cac snippets", "chong va cac snippets", "chong ca cac snippets", "chong ma dac 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: (((("chong ma cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chong ma cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chong ma cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chong ma cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.