Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
hoi trung » thoi trung, hoc trung, doi trung
thoi que » thoi quen, thon que, thong que
hoc dung » hoc ung, hoc dan, tac dung
dung coc » dung co, dung hoc, dung cac
yen van » nen van, huyen van, quyen van
quoc lo » quoc co, quoc o, quoc so
que van » qua van, quy van, quyet van
coc mo » uoc mo, co mo, hoc mo

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (phung OR phuong) thi yen van. hoi trung quoc lo ) or ( nhung thoi que van. hoc dung coc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (phung OR phuong) thi yen van. hoi trung quoc lo ) OR ( nhung thoi que van. hoc dung coc mo )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (phung OR phuong) thi yen van. hoi trung quoc lo ) or ( nhung thoi que van. hoc dung coc mo ))".
• Adding a wildcard symbol may retrieve word variants: (( (phung OR phuong) thi yen van. hoi trung quoc lo ) or ( nhung thoi que van. hoc dung coc mo ))*.