Perhaps you should try some spelling variations:
chat duc » chat xuc, chat doc, chet duoc
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
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 y ((nang xa) OR (nang ma)) hoi. hieu ve chat duc ((va tinh) or (may tinh)) thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (nang ma)) hoi. hieu ve chat duc ((va tinh) OR (may tinh)) thai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) OR (nang ma)) hoi. hieu ve chat duc ((va tinh) or (may tinh)) thai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) OR (nang ma)) hoi. hieu ve chat duc ((va tinh) or (may tinh)) thai cua te*.