Perhaps you should try some spelling variations:
thuong thong » thong thong, thuong trong, thuong phuong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
truong ca » truong cao, truong va, trong ca
dien phan » dien thanh, hien phap, dien dan
bien phap » ban phap
trung ca » trung cap, trung cua, trung can

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 ((trung ca) or (truong ca)) thuong thong ((dien phan) OR (bien phap)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung ca) OR (truong ca)) thuong thong ((dien phan) OR (bien phap)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((trung ca) or (truong ca)) thuong thong ((dien phan) OR (bien phap)) tu".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung ca) or (truong ca)) thuong thong ((dien phan) OR (bien phap)) tu*.