Perhaps you should try some spelling variations:
te sach » toc sach
tu nang » tru nang, tu nong, tu lang
hanh di » hanh vi, hanh de, hang di
tu nano » truc nano
hieu ve » hieu va, hieu van
chuc va » thuc va
di cua » dai cua, doi cua, de cua
ve cau » ke cau, va cau, ve cac
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: te sach ((tu nang) or (tu nano)) xa hoi. hieu ve cau ((chuc va) OR (thuc vat)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tu nano)) xa hoi. hieu ve cau ((chuc va) OR (thuc vat)) hanh di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) or (tu nano)) xa hoi. hieu ve cau ((chuc va) OR (thuc vat)) hanh di cua te*".