Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
lang thanh » dang thanh, tang thanh, lang thang
hoc thieu » hoc hien
trinh van » trinh han, trinh quan, trinh toan
hung cong » nhung cong, hung cuong, phung cong
lang than » lang thang, sang than, lang thai
van hung » van dung, manh hung, van duong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) xanh - canh trinh van hung cong ((lang than) OR (lang thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - canh trinh van hung cong ((lang than) OR (lang thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - canh trinh van hung cong ((lang than) OR (lang thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - canh trinh van hung cong ((lang than) OR (lang thanh)) cao*.