Perhaps you should try some spelling variations:
chat phuc » thuat phuc, khac phuc, chat huu
hieu van » hieu va, thien van, lieu va
van chat » cao chat
phuc cam » phan cam, phuc co, phuc cua
su sach » so sach, vu sach
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
cam dan » cac dan, ca dan, nam dan
vai cua » hai cua, lai cua, bai cua

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 (co sach)) ky nang xa hoi. hieu van chat phuc cam dan ((vai cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) ky nang xa hoi. hieu van chat phuc cam dan ((vai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (co sach)) ky nang xa hoi. hieu van chat phuc cam dan ((vai cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (co sach)) ky nang xa hoi. hieu van chat phuc cam dan ((vai cua) OR (dai cua)) tre*.