Perhaps you should try some spelling variations:
gian lang » gian dan
doi tuong » moi truong, doi song
tuong hoc » truong hoc, tuong ho, duong hoc
lan lang » ban lang, lan tang, van lang
noi dung » hoc dung
dung hoc » dong hoc, dung thuoc, trung hoc
bai gian » bai giang, bai giai, bac giang
thi lan » thi hanh, thi nang, thi lien
hoc mot » hoc moi
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 lan lang. noi dung hoc mot ) or ( nhung bai gian lang. doi tuong hoc mot ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung thi lan lang. noi dung hoc mot ) OR ( nhung bai gian lang. doi tuong hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (( phung thi lan lang. noi dung hoc mot ) or ( nhung bai gian lang. doi tuong hoc mot ))*.