Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tinh » thanh binh, nhanh tinh, than kinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh
gian man » gian dan, gian van, gian ban
gian lan » gian lang, gian dan, giang van

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 - thanh tinh cua thong cong tan ((gian man) or (gian lan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tinh cua thong cong tan ((gian man) OR (gian lan)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tinh cua thong cong tan ((gian man) or (gian lan))*.