Perhaps you should try some spelling variations:
doi tuong » moi truong, doi song
tuong doi » huong doi, tuong voi, duong doi
nhung thi » nhung thoi, nhung tri, nhung chi
thi quyet » thi tuyet, toi quyet, theo quyet
que lang » quet lang, quan lang, que quang
thi que » thi hue, thi quy, nghi que
doi moi » doi voi
doi mo » doi bo, doi co, doi o
phung » phuong, chung, phong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( phung thi que lang. doi tuong doi mo ) or ( nhung thi quyet van. ngoai trong doi moi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung thi que lang. doi tuong doi mo ) OR ( nhung thi quyet van. ngoai trong doi moi )).
• Adding a wildcard symbol may retrieve word variants: (( phung thi que lang. doi tuong doi mo ) or ( nhung thi quyet van. ngoai trong doi moi ))*.