Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
te sach » toc sach
nang xa » nang x, lang xa, nang ma
lang ha » long ha
cham tu » pham tu, cam tu, chai tu
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua
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 (lang ha)) hoi. ((hieu van) OR (thien van)) cham tu va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (lang ha)) hoi. ((hieu van) OR (thien van)) cham tu va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (lang ha)) hoi. ((hieu van) OR (thien van)) cham tu va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (lang ha)) hoi. ((hieu van) OR (thien van)) cham tu va hanh vi cua te*.