Perhaps you should try some spelling variations:
thoi quyet » toi quyet, theo quyet, thoi quen
nhung thoi » phung thi, nhung loi, nhung tri
quyet truc » quyet thuc, quyet thu, thuyet truoc
nhung thi » phung thi, nhung tri, nhung chi
truc lap » truc va, truc may, tu lap
lan van » luan van, lang van, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nhung thi) or (nhung thoi)) lan van. thoi quyet truc lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thi) OR (nhung thoi)) lan van. thoi quyet truc lap*.