Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"do hoang ca snippets" » "do hoang code snippets", "do hong ca snippets", "co hoang ca snippets", "duc hoang ca snippets", "do hoang cao snippets", "do hang ca snippets", "do hoang ha 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: (((("do hoang ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do hoang ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( do hoang ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do hoang ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.