Perhaps you should try some spelling variations:
pham chuc » pham duc, kham chua, pham huy
pham huu » pham duc, pham duy, phan huy
thu nang » thi nang, thu hang, thu bang
hanh tai » thanh tai, hang tai, han tai
hieu van » hieu va, thien van, lieu va
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
so sach » so sanh, bo sach, hoc sach
nang xa » nang x, lang xa, nang ma
co sach » bo sach, cuon sach, hoc sach
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: ((so sach) or (co sach)) thu nang xa hoi. hieu van ((pham chuc) or (pham huu)) va hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) thu nang xa hoi. hieu van ((pham chuc) OR (pham huu)) va hanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) thu nang xa hoi. hieu van ((pham chuc) or (pham huu)) va hanh tai cua te*.