Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
vu sach » vu bach, vu khach
su sach » so sach
thi van » thi lan, thi hanh, thi nang
van hac » van hoc, van ha, van hai
hac duc » hoc duc, ha duc, thach duc
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land
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) OR (su sach)) ((y lang) or (_ lang)) xa hoi. thi van hac duc va hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ((y lang) OR (_ lang)) xa hoi. thi van hac duc va hanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ((y lang) or (_ lang)) xa hoi. thi van hac duc va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ((y lang) or (_ lang)) xa hoi. thi van hac duc va hanh lai cua te*.