Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van loc doc snippets" » "van loc code snippets", "van hoc doc snippets", "van loi doc snippets", "van ngoc doc snippets", "van hoc duoc snippets", "van luoc doi snippets", "van soc duoc 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 loc doc 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 loc doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van loc doc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van loc doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.