Perhaps you should try some spelling variations:
truong long » trong long, trung long, truong cong
nhanh mang » nhanh lang, nhanh quang, nhanh thang
cua truong » cua trung, xuan truong, cac truong
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh mang » hanh trang, nhanh lang, thanh hang
long tinh » cong tinh, trong tinh, luong tin
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: doc ((hieu xanh) or (hieu manh)) - ((hanh mang) OR (nhanh mang)) cua truong long tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - ((hanh mang) OR (nhanh mang)) cua truong long tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (hieu manh)) - ((hanh mang) OR (nhanh mang)) cua truong long tinh toan ban*".