Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh tran » hanh trang, thanh tran, thanh trang
hanh tram » hanh tam, hanh trang, thanh tran
dung cong » dung trong
quang cao » nang cao, quang nam
cong van » cong vang, cong san, song van
juan cao » toan cao, quan cau, juan a

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