Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"jun dan hoc snippets" » "jun dan code snippets", "jun fan hoc snippets", "dung dan hoc snippets", "tung dan hoc snippets", "jun van hoc snippets", "jun dan toc snippets", "jun dai hoc 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: (((("python using java snippets") or ("jun dan hoc snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("jun dan hoc snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( jun dan hoc snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("jun dan hoc snippets"))) or ("locating bug core snippets"))*.