Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, anh thai
sinh thai » dinh thi
hanh tai » thanh tai, hang tai, han tai
te sach » toc sach
hieu va » lieu va, hieu qua
ang xa » lang xa, mang xa, dang xay
cac su » cach su, cac sau, cac du
cua te » cua tu
su va » su van, tu va

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 y ang xa hoi. hieu va cac su va ((((hanh thai) OR (hanh tai))) or (sinh thai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ang xa hoi. hieu va cac su va ((((hanh thai) OR (hanh tai))) OR (sinh thai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ang xa hoi. hieu va cac su va ((((hanh thai) OR (hanh tai))) or (sinh thai)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach y ang xa hoi. hieu va cac su va ((((hanh thai) OR (hanh tai))) or (sinh thai)) cua te*.