Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trung » hanh trang, manh trung, danh trung
trinh phan » trinh han, trinh quan, thanh phan
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
cad trong » cay trong, ca trong, chat trong
phan co » phan bo, phan cong, phan cac

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

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