Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » hanh chinh
hoc thieu » toc thieu, hoc hien
cua khong » hua khong, cua phuong, cua thuong
thong dan » tuong dan, thong den, trong dan
thong van » trong van, thong va, thong quan
chan cac » phan cac, chon cac, nhan cach

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) OR (canh tranh)) cua khong ((thong dan) or (thong van)) chan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trinh) OR (canh tranh)) cua khong ((thong dan) OR (thong van)) chan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh trinh) OR (canh tranh)) cua khong ((thong dan) or (thong van)) chan cac".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trinh) OR (canh tranh)) cua khong ((thong dan) or (thong van)) chan cac*.