Perhaps you should try some spelling variations:
lmay nang » luan nang, may nong, day nang
may nang » may nong, ky nang, cam nang
te sach » toc sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
ve cam » ve cham, va cam, ve cai

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 ((may nang) or (lmay nang)) xa hoi. hieu ((ve cam) OR (ve cac)) luc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((may nang) OR (lmay nang)) xa hoi. hieu ((ve cam) OR (ve cac)) luc va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((may nang) or (lmay nang)) xa hoi. hieu ((ve cam) OR (ve cac)) luc va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((may nang) or (lmay nang)) xa hoi. hieu ((ve cam) OR (ve cac)) luc va danh vi cua tre*.