Perhaps you should try some spelling variations:
quang hanh » quang thanh, quang khanh, quan hanh
quen hanh » quen thanh, quan hanh, hien hanh
quan van » luan van, quan va, quan luan
que van » qua van, quy van, quyet van
quen tu » quen thu, huyen tu, quen cua
tu lap » truc lap
phung » phuong, nhung, chung

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 ((((quan van) or (((quen hanh) or (quang hanh))))) or (que van)). thoi quen tu lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: phung thi ((((quan van) OR (((quen hanh) OR (quang hanh))))) OR (que van)). thoi quen tu lap.
• Adding a wildcard symbol may retrieve word variants: phung thi ((((quan van) or (((quen hanh) or (quang hanh))))) or (que van)). thoi quen tu lap*.