Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
chon tu » con tu, cho tu, choi tu

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 ((tranh va) OR (trinh va)) nhung cong san ((chon tu) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh ((tranh va) OR (trinh va)) nhung cong san ((chon tu) OR (phan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh ((tranh va) OR (trinh va)) nhung cong san ((chon tu) or (phan tu))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh ((tranh va) OR (trinh va)) nhung cong san ((chon tu) or (phan tu))*.