Perhaps you should try some spelling variations:
thien van » thi van
thuc dan » thuc hanh, hoc dan, thuc vat
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
y lang » o lang, _ lang, tay lang
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
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: su sach y lang xa hoi. thien van cac ((((luc va) OR (tuc va))) or (thuc dan)) hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y lang xa hoi. thien van cac ((((luc va) OR (tuc va))) OR (thuc dan)) hanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y lang xa hoi. thien van cac ((((luc va) OR (tuc va))) or (thuc dan)) hanh dai cua te*".