Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
hoc thieu » toc thieu, hoc hien
quan hang » quan hoang, quan lang, quan hanh
luong van » luong va, luong vat, luong quan
duong van » duong va, luong va, dang van
ban tap » han tap, ban tai, ban tay

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