Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
quang ban » quang binh, quang tuan, quang tran
quan ban » qua ban, quan van, quan ba
luan ban » luan van, luan san, luan han
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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