Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac dan hanh slippers" » "bac dang hanh slippers", "bac dan khanh slippers", "bac dan thanh slippers", "bach dan hanh slippers", "cac dan hanh slippers", "ban dan hanh slippers", "bac dan hanh slippery", "bac dan hanh grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("bac dan hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac dan hanh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac dan hanh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac dan hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.