Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
thi chien » thi hien, thi thien, thien chien
tranh cua » doanh cua, manh cua
bang song » nang song
cua bang » chua bang, cua ban, cua dang
song dan » song danh, song van, cong dan
than man » than ma, thanh san, tran manh

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) or (thi chien)) xanh - canh tranh cua bang song dan ((van ban) or (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (thi chien)) xanh - canh tranh cua bang song dan ((van ban) OR (than man)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (thi chien)) xanh - canh tranh cua bang song dan ((van ban) or (than man))*.