Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
van hanh » van thanh, ban hanh, van anh
hai cua » thai cua, dai cua, hoi cua
lai cua » dai cua, lai chau, thai cua
duc van » duc va, duc tan, duc manh
tu sach » thu sach, su sach, te sach
van hoi » van hoa, van hoc, van hoe
ve cham » va cham, ve chat, vu cham
y lang » o lang, _ lang, tay lang
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y lang van hoi. hieu ((ve cam) OR (ve cham)) duc van hanh ((lai cua) or (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang van hoi. hieu ((ve cam) OR (ve cham)) duc van hanh ((lai cua) OR (hai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y lang van hoi. hieu ((ve cam) OR (ve cham)) duc van hanh ((lai cua) or (hai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach y lang van hoi. hieu ((ve cam) OR (ve cham)) duc van hanh ((lai cua) or (hai cua)) triet*.