Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
mot chieu » doi chieu, ho chieu
trinh va » trinh van, trinh vat, trinh ve
san toan » van toan, dan toan, manh toan
dan than » dan chan, ban than, van than

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 (mot chieu)) xanh - hanh trinh va nhung cong ((san toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (mot chieu)) xanh - hanh trinh va nhung cong ((san toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (mot chieu)) xanh - hanh trinh va nhung cong ((san toan) or (dan than)) cau*.