Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
sach tranh » canh tranh
hoc thieu » toc thieu, hoc hien
sach anh » sach danh, sach kinh, sach nang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 ((sach anh) OR (sach tranh)) cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh ((sach anh) OR (sach tranh)) cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh ((sach anh) OR (sach tranh)) cong dan toan cao*.