Perhaps you should try some spelling variations:
thien van » thi van
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
lai cua » hai cua, lai chau, thai cua
y lang » _ lang, tay lang, yen lang
o lang » hoa lang, hoi lang

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 ((y lang) or (o lang)) xa hoi. thien van cac xuc van hanh ((lai cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y lang) OR (o lang)) xa hoi. thien van cac xuc van hanh ((lai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y lang) or (o lang)) xa hoi. thien van cac xuc van hanh ((lai cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y lang) or (o lang)) xa hoi. thien van cac xuc van hanh ((lai cua) OR (dai cua)) te*.