Perhaps you should try some spelling variations:
trinh trang » tinh trang, trinh trong, trinh trung
quang trong » quang truong, quang trung, quan trong
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh tran » trinh toan, trinh tren, trinh tan
trong dang » truong dang, trong dan, trong dong
hieu manh » hieu nganh, dieu hanh, hien hanh
dang tran » dang thanh, quang tran, hoang tran
tran cao » toan cao, tran chau, trang cho

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 xanh) or (hieu manh)) - hanh ((trinh tran) OR (trinh trang)) quang trong dang tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu manh)) - hanh ((trinh tran) OR (trinh trang)) quang trong dang tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (hieu manh)) - hanh ((trinh tran) OR (trinh trang)) quang trong dang tran cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu manh)) - hanh ((trinh tran) OR (trinh trang)) quang trong dang tran cao*.