Perhaps you should try some spelling variations:
phan gian » phan giai, phan giay, phan gia
ngang hoc » nang hoc, ngang duoc, quang hoc
dung dat » dung va, dung tai
ki ngang » ki nang, kim ngan, k ngan
hoc phan » hoc dan, hoc pho
gian dan » gian lang
dat van » dao van, dat va, dam van
van thi » van tai, dan thi, van thu
thi van » thi lan, thi hanh, thi nang
tin » tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung dat van thi van ) or ( ki ngang hoc phan gian dan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung dat van thi van ) OR ( ki ngang hoc phan gian dan ))*.