Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cham tuc » nham thuc, tham thuc, cham soc
pham thu » pham thi, pham tu, phap thu
tinh hai » tinh thai, tinh chat, trinh han
te sach » toc sach
hieu ve » hieu va, hieu van
va tinh » may tinh
hai duc » hoai duc, mai duc, ha duc
duc tre » duoc tren, duc tien
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. hieu ve ((((cham tuc) OR (pham thuc))) or (pham thu)) va tinh hai duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu ve ((((cham tuc) OR (pham thuc))) OR (pham thu)) va tinh hai duc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu ve ((((cham tuc) OR (pham thuc))) or (pham thu)) va tinh hai duc tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ve ((((cham tuc) OR (pham thuc))) or (pham thu)) va tinh hai duc tre*.