Perhaps you should try some spelling variations:
lang chai » lang ha, lang cua, lang phi
hieu van » hieu va, thien van, lieu va
chai cau » phan cau, chai va, cua cau
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
bach » cach, bac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu bach)) ly nang xa hoi. hieu van cam ((xuc va) OR (luc va)) lang chai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu bach)) ly nang xa hoi. hieu van cam ((xuc va) OR (luc va)) lang chai cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu bach)) ly nang xa hoi. hieu van cam ((xuc va) OR (luc va)) lang chai cau treo".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu bach)) ly nang xa hoi. hieu van cam ((xuc va) OR (luc va)) lang chai cau treo*.