Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hoang ca snippets" » "van hoang code snippets", "van hoan ca snippets", "quan hoang ca snippets", "tran hoang ca snippets", "van hoang cao snippets", "van hang ca snippets", "van 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: (((("van 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: (((("van hoang ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van hoang ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hoang ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.