Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
van tham » van thanh, van tuan, van chat
hoc sach » hoc sinh, hoc cac, hoc anh
vuc nang » cuc nang, vu nang, chuc nang
hang doi » hang loi, huong doi, hang tai
hieu van » hieu va, thien van, lieu va
hang di » hang vi, hang dien, hang dich
co sach » bo sach, cuon sach
nang xa » nang x, lang xa, nang ma
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: ((co sach) OR (hoc sach)) vuc nang xa hoi. hieu van tham nuoc va ((hang di) or (hang doi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (hoc sach)) vuc nang xa hoi. hieu van tham nuoc va ((hang di) OR (hang doi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) OR (hoc sach)) vuc nang xa hoi. hieu van tham nuoc va ((hang di) or (hang doi)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((co sach) OR (hoc sach)) vuc nang xa hoi. hieu van tham nuoc va ((hang di) or (hang doi)) cua te*.