Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
canh tinh » manh tinh, canh tranh, nhanh tinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, 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 - ((canh tinh) OR (hanh tinh)) toan thong cong tan tran ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((canh tinh) OR (hanh tinh)) toan thong cong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh tinh) OR (hanh tinh)) toan thong cong tan tran ban*.