Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
vu sach » vu bach, su sach, vu khach
lang xa » lang ha, dang xay, lang van
van bac » van ban, van hac, dan bac
van bao » van ban, van dao
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach o lang xa hoi. thi ((van bac) OR (van bao)) duc va hanh lai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach o lang xa hoi. thi ((van bac) OR (van bao)) duc va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: vu sach o lang xa hoi. thi ((van bac) OR (van bao)) duc va hanh lai cua te*.