Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
ky lang » ky dang, ky tang, tay lang
hieu ve » hieu va, hieu van
cau tuc » cau truc, cau tu, cau luc
tuc lap » truc lap, tuc tap, tu lap
cuu tre » cua tre, cau tren, cau treo
va sac » va cac, va suc, va san
ve cau » ke cau, va cau, ve cac
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: va sac ((ky lang) or (ky nang)) xa hoi. hieu ve cau tuc lap trinh van ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va sac ((ky lang) OR (ky nang)) xa hoi. hieu ve cau tuc lap trinh van ((cua te) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: va sac ((ky lang) or (ky nang)) xa hoi. hieu ve cau tuc lap trinh van ((cua te) or (cuu tre))*.