Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
sach lo » sach dao, sach doi, sach hoi
lang xa » lang ha, dang xay, lang van
thi van » thi lan, thi hanh, thi nang
nam mua » nam cua, nam qua, nam luat
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
nam xua » nam cua, nam qua, nam luat
sach o » sac o, sach y, mach o

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach o) OR (sach lo)) lang xa hoi. thi van ((nam xua) or (nam mua)) va danh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach o) OR (sach lo)) lang xa hoi. thi van ((nam xua) OR (nam mua)) va danh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach o) OR (sach lo)) lang xa hoi. thi van ((nam xua) or (nam mua)) va danh vai cua triet*".