Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan tap » toan 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 - ((nhanh quang) or (((hanh trang) OR (hanh trinh)))) cua dung cong tap toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((nhanh quang) OR (((hanh trang) OR (hanh trinh)))) cua dung cong tap toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((nhanh quang) or (((hanh trang) OR (hanh trinh)))) cua dung cong tap toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((nhanh quang) or (((hanh trang) OR (hanh trinh)))) cua dung cong tap toan tap*.